Single DIN vs double DIN
This is a measurement, not a quality tier. Your dashboard has already decided which one you can fit — and the parts nobody mentions cost more than the difference between them.
By Sawyer V. · Published · How we research
We have not tested any of this. Everything below is compiled from published manufacturer specifications, and the arithmetic is printed so you can check it. This page carries affiliate links: if you buy through one we earn a commission at no extra cost to you, and it does not change the order of the picks. Full disclosure.
The verdict
DIN is a slot size, not a feature level. Single DIN is 2 inches tall, double DIN is 4. Measure the opening in your dash — that decides it, not your budget. If your car takes a double DIN, fit a double DIN: a 7 inch CarPlay screen starts at around $100 and that is the upgrade people actually want. If it takes a single DIN, a $40 to $80 Bluetooth receiver gets you hands-free calling and phone audio, and your phone stays the navigation screen. Prices as of October 11, 2026.
The cost nobody lists: none of these include the vehicle-specific wiring harness and dash kit you need to fit them, and a steering-wheel-control adapter is extra again. Budget $20 to $80 on top, and more if you are paying someone to do the install. On a cheap head unit the parts and labor can exceed the unit.
| # | Pick | Install | Score | Price |
|---|---|---|---|---|
| 1 | Pioneer MVH-S230BT A single-DIN slot and a phone you already use for navigation | Hardwire | 6.6/10 | $80.00 - view on Amazon |
| 2 | Jensen MPR210 The cheapest way to put Bluetooth in an old dash | Hardwire | 7.2/10 | $39.99 - view on Amazon |
| 3 | BOSS Audio BV9358B A 7 inch CarPlay screen without a four-figure bill | Hardwire | 5.1/10 | $139.99 - view on Amazon |
| 4 | Kissound 7 in Double DIN with Wireless CarPlay Wireless CarPlay at the lowest price in this ledger | Hardwire | 5.9/10 | $99.99 - view on Amazon |
Prices last verified October 11, 2026. They move constantly; the figure on Amazon when you click is the real one.
What DIN actually measures
DIN is a German standards body, and the relevant standard fixes the size of a car radio opening. That is the whole of it — it says nothing about sound quality, features or price.
- Single DIN: 180 x 50 mm, about 7 x 2 inches. The classic radio slot
- Double DIN: the same width, twice the height — about 7 x 4 inches. Room for a screen
Measure the opening in your dashboard with the trim in place. If it is roughly two inches tall you have a single DIN slot; if roughly four, a double. Some cars have a single DIN radio sitting in a double DIN opening with a storage cubby filling the rest, and those are the happy ones — you can go either way.
What a single DIN gives up
One thing, and it is the big one: a screen large enough for phone projection. CarPlay and Android Auto need a display, and a display needs the second DIN of height.
| Pioneer MVH-S230BT | Jensen MPR210 | BOSS BV9358B | Kissound | |
|---|---|---|---|---|
| Chassis | Single DIN | Single DIN | Double DIN | Double DIN |
| Screen | Display only | Display only | 7 in touch | 7 in touch |
| CarPlay / Android Auto | No | No | Yes, wired | Yes, wireless |
| Bluetooth hands-free | Yes | Yes | Yes | Yes |
| Price | $80.00 | $39.99 | $139.99 | $99.99 |
Everything else a single DIN still does. Bluetooth hands-free calling, phone audio streaming, USB, AM/FM — the features that cover most of why people replace a factory radio. If your phone already lives in a mount at eye level doing navigation, a single DIN receiver plus a good mount is a perfectly coherent setup and considerably cheaper than a screen.
Who each one is for
- Pioneer MVH-S230BT — a single DIN slot and a long-term keeper. Pioneer is the mainstream name in aftermarket audio, and $80 buys you their build and interface rather than a budget brand's. Skip it if the car is worth less than the install
- Jensen MPR210 — the cheapest route out of a dead tape deck. $40 for Bluetooth calling and streaming in an old dash. Skip it if you want the interface to feel modern; it is a budget unit and feels like one
- BOSS BV9358B — a double DIN slot and wired CarPlay. A 7 inch touchscreen with CarPlay and Android Auto for $140, which is roughly a quarter of what premium double DIN units cost. Skip it if plugging a cable in every trip is the thing you are trying to escape
- Kissound — wireless CarPlay at the lowest price here. Wireless projection for $100, cheaper than the wired BOSS unit. Skip it if brand support matters: this is an unknown maker with no product page and no history
The parts the listings leave out
This is where head unit budgets go wrong, and it applies equally to both sizes.
- A wiring harness adapter, specific to your car, so you are not cutting the factory loom. Usually $10 to $25, and non-negotiable if you ever want to put the original radio back
- A dash kit, specific to your car, to make the new unit sit flush in an opening that was never a plain rectangle. Usually $15 to $40
- A steering-wheel-control adapter, if you want to keep the buttons on your wheel working. Often $40 to $80, and people discover this after the install
- An antenna adapter on many cars, a few dollars, and the thing that leaves you with no radio reception if you forget it
Add it up before you decide a $40 head unit is cheap. On many cars the supporting parts cost more than the Jensen does, which sometimes makes the better-built Pioneer the more sensible purchase for very little extra on the total.
Should you replace the head unit at all
Often, no. Be honest about which problem you are solving, because three of the four common ones have cheaper answers.
| What you want | New head unit? | Cheaper answer |
|---|---|---|
| Hands-free calls in an old car | Maybe | A Bluetooth receiver or visor speakerphone |
| Phone audio through the speakers | Maybe | A Bluetooth adapter or FM transmitter |
| CarPlay on a big screen | Yes, if double DIN | A portable CarPlay screen |
| Wireless CarPlay, car already has wired | No | A wireless CarPlay adapter |
| Better sound | No | Speakers first, every time |
| A reversing camera | Yes, if double DIN | A standalone camera and mirror monitor |
The fifth row is the one people most often get wrong. A head unit does not make a car sound better in any way you will notice — the factory speakers are the limit, and replacing them is both cheaper and more audible. See best car speakers for an easy upgrade.
For the simplest routes into an older car without touching the dash, Bluetooth adapters for older cars and how to add CarPlay to an older car cover the whole decision tree. The full head unit ranking is best car stereos and head units.
Every pick, with the working
Each entry lists the specifications the maker publishes, the axis scores those specifications produce, and what you give up. Rows that read “Not published” are not omissions on our side: they are things the maker will not commit to in writing, and they cost the product points on the transparency axis. Specifications compiled September 4, 2026.
Our pickA single-DIN slot and a phone you already use for navigation
Pioneer MVH-S230BT
A 1-DIN Bluetooth receiver with USB and AM/FM and no screen worth the name, from the biggest name in aftermarket car audio. If your dash has a single-DIN opening, this is the honest upgrade: it gives you hands-free calling and phone audio, which is what most people actually wanted, without pretending a 2-inch display is a navigation system.
- Chassis
- Single DIN
- Screen
- None — display only
- Phone projection
- None
- Bluetooth
- Yes, hands-free and audio
- Sources
- Bluetooth, USB, AM/FM
- Harness and dash kit
- Not included, vehicle specific
- Warranty
- Not published
List price $80.00 per Amazon listing, October 11, 2026, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
What it gets right
- Fits a single-DIN slot, which is the only option in many older cars
- Bluetooth hands-free and audio streaming, the two features that matter most
- Pioneer, with a real product line and dealer support behind it
- Cheap enough that the install labor can cost more than the unit
Flaws
- No CarPlay or Android Auto — your phone stays your navigation screen
- No touchscreen, so control is buttons and a small display
- Needs a vehicle-specific wiring harness and dash kit, neither included
- Pioneer publishes no warranty term on the listing we checked
The working behind the 6.6
- Heat headroom: not scored (weight 22%)
- The maker publishes no operating-temperature ceiling, so this axis is dropped and the other weights are re-normalized.
- Install effort: 4.0 (weight 24%)
- Wires into the fuse box. Half an hour, a fuse tap, a trim tool and a willingness to be upside down under the dash. This is the real cost of parking mode.
- Price against the ceiling: 8.0 (weight 24%)
- Listed at $80 on the compile date. This site's buyer has a practical ceiling around $150 for a single upgrade, so the scale rewards everything under $100 and falls away sharply past $150. The live price is very often different, and that is what the button is for.
- Written commitment: not scored (weight 15%)
- No warranty term published, so this axis is dropped and the other weights are re-normalized.
- Spec transparency: 8.6 (weight 15%)
- 6 of the 7 specifications we went looking for are published by the maker (86%). A blank row is never a guess here: it prints “Not published” and it costs the product points, because a figure nobody will commit to in writing is a figure you cannot check.
Axes with no published input are dropped and the remaining weights re-normalized, so a product is not punished for a category where an axis does not apply. Specifications compiled September 4, 2026 from the Pioneer MVH-S230BT listing.
2The cheapest way to put Bluetooth in an old dash
Jensen MPR210
Forty dollars for a single-DIN Bluetooth receiver with hands-free calling, USB and AM/FM. In a twenty-year-old car with a dead tape deck this is the whole upgrade, and it costs less than one tank of fuel. Buy it when the goal is simply to stop holding the phone, not to modernize the dashboard.
- Chassis
- Single DIN
- Screen
- None — display only
- Phone projection
- None
- Bluetooth
- Yes, hands-free and audio
- Sources
- Bluetooth, USB, AM/FM
- Harness and dash kit
- Not included, vehicle specific
- Warranty
- Not published
List price $39.99 per Amazon listing, October 11, 2026, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
What it gets right
- Cheapest head unit here by a wide margin
- Bluetooth hands-free calling and audio streaming
- Single DIN, so it fits the older dashes that have no other option
- Mechless design, so there is no CD mechanism to fail
Flaws
- No phone projection and no touchscreen
- Jensen is a budget brand; build and interface reflect the price
- Still needs a harness and dash kit for your specific car
- No published warranty term
The working behind the 7.2
- Heat headroom: not scored (weight 22%)
- The maker publishes no operating-temperature ceiling, so this axis is dropped and the other weights are re-normalized.
- Install effort: 4.0 (weight 24%)
- Wires into the fuse box. Half an hour, a fuse tap, a trim tool and a willingness to be upside down under the dash. This is the real cost of parking mode.
- Price against the ceiling: 9.5 (weight 24%)
- Listed at $39.99 on the compile date. This site's buyer has a practical ceiling around $150 for a single upgrade, so the scale rewards everything under $100 and falls away sharply past $150. The live price is very often different, and that is what the button is for.
- Written commitment: not scored (weight 15%)
- No warranty term published, so this axis is dropped and the other weights are re-normalized.
- Spec transparency: 8.6 (weight 15%)
- 6 of the 7 specifications we went looking for are published by the maker (86%). A blank row is never a guess here: it prints “Not published” and it costs the product points, because a figure nobody will commit to in writing is a figure you cannot check.
Axes with no published input are dropped and the remaining weights re-normalized, so a product is not punished for a category where an axis does not apply. Specifications compiled September 4, 2026 from the Jensen MPR210 listing.
3A 7 inch CarPlay screen without a four-figure bill
BOSS Audio BV9358B
A 7 inch double-DIN touchscreen with CarPlay and Android Auto for about a hundred and forty dollars, which is roughly a quarter of what the premium double-DIN units in this ledger cost. The compromises are real — screen brightness and interface polish are where the money went elsewhere — but it delivers the one thing people replace a head unit for.
- Chassis
- Double DIN
- Screen
- 7 in touchscreen
- Phone projection
- Apple CarPlay and Android Auto
- Disc drive
- None
- Harness and dash kit
- Not included, vehicle specific
- Screen brightness
- Not published
- Warranty
- Not published
List price $139.99 per Amazon listing, October 11, 2026, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
What it gets right
- CarPlay and Android Auto on a 7 in touchscreen at the bottom of the price band
- Double DIN, so it fills the larger opening properly
- Mechless, with no disc drive to fail
- Far cheaper than the premium double-DIN units on this site
Flaws
- Budget screen — brightness and viewing angle are where the saving shows
- BOSS is a value brand and the interface is not Pioneer's
- Only fits a double-DIN opening, which many older cars do not have
- Harness, dash kit and often a steering-wheel-control adapter are extra
The working behind the 5.1
- Heat headroom: not scored (weight 22%)
- The maker publishes no operating-temperature ceiling, so this axis is dropped and the other weights are re-normalized.
- Install effort: 4.0 (weight 24%)
- Wires into the fuse box. Half an hour, a fuse tap, a trim tool and a willingness to be upside down under the dash. This is the real cost of parking mode.
- Price against the ceiling: 5.0 (weight 24%)
- Listed at $139.99 on the compile date. This site's buyer has a practical ceiling around $150 for a single upgrade, so the scale rewards everything under $100 and falls away sharply past $150. The live price is very often different, and that is what the button is for.
- Written commitment: not scored (weight 15%)
- No warranty term published, so this axis is dropped and the other weights are re-normalized.
- Spec transparency: 7.1 (weight 15%)
- 5 of the 7 specifications we went looking for are published by the maker (71%). A blank row is never a guess here: it prints “Not published” and it costs the product points, because a figure nobody will commit to in writing is a figure you cannot check.
Axes with no published input are dropped and the remaining weights re-normalized, so a product is not punished for a category where an axis does not apply. Specifications compiled September 4, 2026 from the BOSS Audio BV9358B listing.
4Wireless CarPlay at the lowest price in this ledger
Kissound 7 in Double DIN with Wireless CarPlay
Under a hundred dollars for a 7 inch double-DIN screen with wireless CarPlay and Android Auto. Wireless is the feature worth noting: the BOSS unit at a higher price is wired projection, and plugging a cable in every trip is the thing people stop doing. The brand is unknown, which is the trade.
- Chassis
- Double DIN
- Screen
- 7 in HD touchscreen
- Phone projection
- Wireless CarPlay and Android Auto
- Steering wheel controls
- Supported
- Harness and dash kit
- Not included, vehicle specific
- Screen resolution
- Not published
- Warranty
- Not published
List price $99.99 per Amazon listing, October 11, 2026, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
What it gets right
- Wireless CarPlay and Android Auto, which the dearer BOSS unit does not offer
- Cheapest double-DIN touchscreen here
- 7 in screen and steering-wheel-control support, stated
Flaws
- Unknown brand with no product page and no support history
- No published screen resolution or brightness
- Wireless projection on budget hardware is where connection drops show up
- Harness and dash kit still extra, and still vehicle specific
The working behind the 5.9
- Heat headroom: not scored (weight 22%)
- The maker publishes no operating-temperature ceiling, so this axis is dropped and the other weights are re-normalized.
- Install effort: 4.0 (weight 24%)
- Wires into the fuse box. Half an hour, a fuse tap, a trim tool and a willingness to be upside down under the dash. This is the real cost of parking mode.
- Price against the ceiling: 7.0 (weight 24%)
- Listed at $99.99 on the compile date. This site's buyer has a practical ceiling around $150 for a single upgrade, so the scale rewards everything under $100 and falls away sharply past $150. The live price is very often different, and that is what the button is for.
- Written commitment: not scored (weight 15%)
- No warranty term published, so this axis is dropped and the other weights are re-normalized.
- Spec transparency: 7.1 (weight 15%)
- 5 of the 7 specifications we went looking for are published by the maker (71%). A blank row is never a guess here: it prints “Not published” and it costs the product points, because a figure nobody will commit to in writing is a figure you cannot check.
Axes with no published input are dropped and the remaining weights re-normalized, so a product is not punished for a category where an axis does not apply. Specifications compiled September 4, 2026 from the Kissound double-DIN listing.
Prices last verified October 11, 2026. They move constantly; the figure on Amazon when you click is the real one.
Questions people actually ask
What is the difference between single DIN and double DIN?
Height only. Single DIN is 180 x 50 mm, roughly 7 x 2 inches; double DIN is the same width and twice the height, about 7 x 4 inches. It is a slot measurement, not a quality or feature tier — though in practice only a double DIN has room for a screen big enough for CarPlay.
Can I fit a double DIN in a single DIN slot?
Not without cutting the dashboard, which is not a job worth doing on most cars. The reverse works fine: a single DIN unit fits a double DIN opening with a dash kit that fills the remaining space, often with a storage pocket.
Can you get CarPlay on a single DIN head unit?
Not meaningfully — CarPlay needs a display, and a single DIN slot has no room for a usable one. If your dash is single DIN and you want CarPlay, the practical routes are a separate portable CarPlay screen or a flip-out motorized unit, which is a specialist and more expensive product.
How do I know which DIN size my car takes?
Measure the radio opening in the dash with the trim in place. About two inches tall is single DIN, about four is double. If your car has an integrated infotainment screen wired into climate and vehicle settings, it is likely neither, and an aftermarket head unit is not the right path.
What else do I need to buy to install a car stereo?
A vehicle-specific wiring harness adapter and dash kit at minimum, usually $25 to $65 together, plus an antenna adapter on many cars. Add a steering-wheel-control adapter at $40 to $80 if you want those buttons to keep working. On a budget head unit the supporting parts can cost more than the unit.