A VPN on an Android car head unit: install from a USB stick, internet from your phone, and autostart

An Android head unit is the same Android as in your phone, only in the dashboard: you can install an app from a file, and it gets its internet from your phone or its own SIM. Below: how to check the Android version, how to install Mayak from a USB stick, where the unit gets its internet, how to sign in, what about autostart, and how much data it will use. We have not tested a real head unit — the end of the article says what exactly.

Which head units will work

A head unit with Android 7.0 or newer inside will work. There are three cases:

• An Android head unit (an “Android car radio”, a “multimedia unit”): a tablet in the dashboard with a touchscreen. If the version is 7.0 or higher, it fits.
• A factory unit without Android: it has its own closed system and you cannot install files on it. If the car shows your phone's screen, Mayak stays on the phone and protects what runs on the phone; what that looks like on the car's screen we did not test.
• Old Android (6.0 and older): our file will not install there. We do not recommend flashing the unit's firmware yourself, and we have not tried it: install Mayak on your phone.

The main rule: Mayak protects only what runs on the device where it is installed. On a head unit it protects the unit's apps (maps, music, video), not the phone in your pocket.

How to check the Android version on a head unit

1. Open the unit's settings and look for “About”, “System information” or “System”. The name depends on the firmware. Look for “Android version”: you need 7.0 or higher.
2. Trust the number in the settings with reservations. Owners of cheap head units write on forums that the shown number can be newer than the real one, and that some models also inflate the memory size and processor details. We have not verified this, but such complaints are common.
3. The install itself decides. Our file will not install on Android older than 7.0: the system answers “App not installed” (other causes of that error). If it installed and opened, the version is fine, whatever the settings say.

The unit's processor is not an obstacle: our file contains builds for all four kinds of Android processor. During installation about 40 MB of free storage is needed (our breakdown).

How to install Mayak on a head unit from a USB stick

Step 1. Create the account on your phone. Sign up in Mayak on your phone or in your account page. Signing up on a head unit is awkward: registration asks you to pass a “you are human” check, and that works only where Google services or a full browser are present.

Step 2. Download the file and put it on a USB stick. The address is mayak.ws/dl/app: the file mayak-vpn.apk downloads, about 30 MB. Copy it to the root of the stick (not into a folder). The most reliable file system is FAT32; if the unit offers to format the stick, agree only when nothing you need is on it.

Step 3. Open the file on the unit. Plug the stick into USB, open the unit's file manager (called “Files”, “Explorer” or similar) and find the file. If there is no file manager, look for the unit's own app store; if that is missing too, this route is closed and only the browser is left (see below). We do not recommend third-party file managers by name: we have not tested any.

Step 4. Allow the install and install. The unit will ask whether apps from this source may be installed: allow it for the app you are opening the file with (on Android 8 and newer the permission goes to that app; on Android 7, to a general “Unknown sources” switch). Tap “Install”. This step and the errors are covered in detail in the article on installing an APK from a USB stick: a head unit works the same way as a TV.

Without a stick: if the unit is already online and has a browser, type mayak.ws/dl/app into it and open the downloaded file from “Downloads”. The browser then needs the permission.

The Google Play and website versions do not install over each other: they are signed with different keys. If one is already on the unit and you want the other, remove the first.

Where the head unit gets its internet

Installing needs no internet, but signing in and Mayak itself do. Three sources:

• A phone hotspot (in the settings it is called “Hotspot” or “Tethering”). The unit connects to it like to home Wi-Fi. Because Mayak is installed on the unit itself, the unit builds the tunnel, and the phone just provides a channel. So the question we covered in the sharing article — whether hotspot traffic goes through the phone's tunnel — does not arise here. If Mayak is also on in the phone, whether the unit's traffic would pass through two tunnels at once we did not measure: it is simpler to switch it off on the phone for the trip if you do not need it there.
• A SIM in the unit itself, if it has a slot and a mobile module. How your network behaves depends on the carrier; if Mayak will not connect, open “Help” → “Check” in the app, and the help page goes through “Cannot connect” step by step.
• Home or garage Wi-Fi: fine for the first sign-in and for updates while you are not on the road.

The unit should connect to the hotspot automatically when the ignition comes on. Whether your model can do that we do not know: if not, you will have to connect to the hotspot by hand each time.

Signing in and the first connection

A head unit has a touchscreen, so Mayak opens an ordinary sign-in form, like on a phone: the email or account number and the password from step 1. It is easier to type while parked. A code from the phone, as on a TV, is used only on devices with no touchscreen; if your unit does not report a touchscreen, a QR code and an eight-character code appear and you confirm the sign-in on your phone.

Pick a country and tap the connect button. The first time, Android asks for permission to connect in its own system window — press “OK”. If the unit has no such window at all, the help page describes another way to grant the permission, written for boxes with a stripped-down firmware; we have not tried it on a head unit. The first connection can take up to 15 seconds.

Autostart: what you can set and what we do not know

• Auto-connect. In Mayak, “Settings” → “Protection” → “Auto-connect”: the app brings up the last working connection by itself when the device powers on. Connect by hand once so it has something to restore. The help page has the details: “Auto-connect after a reboot”.
• A head unit may “sleep” rather than switch off. What happens to the app when the ignition goes off — whether it stays in memory, gets closed, or starts from scratch — depends on the firmware. We have no head unit to test it.
• Power saving. On phones Android closes background apps to save battery, and the help page advises allowing Mayak to run in the background: “The app closes by itself”. If your unit has a similar autostart or power-saving setting, give Mayak permission. What it is called, and whether you have one, we do not know.
• Connectivity at start. Until the unit is online (the phone's hotspot has not come up yet), Mayak's connection will not come up. That is the order of switching on, not a fault.

How much data it will use

Mayak adds about 10% to what you use anyway: in our test on 16 September 2026, a 20 MB file through the tunnel cost 10.1–10.7% more than directly. When you do nothing and the tunnel is on, about 3 MB a day goes. We measured on a phone, on our own servers (the full breakdown). If the unit sits on a phone hotspot, all of this traffic comes from the phone's mobile data plan: maps, music and video in the car can cost gigabytes, and the ten percent on top counts too.

How many slots a head unit takes

A head unit with Mayak takes one slot on the plan, like a phone. The trial is 3 days on two devices after you confirm your email, no card: a phone plus a head unit use both slots. “Start” is up to 3 devices for 300 ₽ a month, “Family” up to 5 for 500 ₽, “Max” up to 10 for 700 ₽.

What we tested

• The file itself, 27 October 2026. The address mayak.ws/dl/app serves mayak-vpn.apk of 30,483,730 bytes. The website channel version that day is 1.0.19 (api.mayaknetworks.com/version.json). The minimum Android version is 7.0, and the app does not need Google Play services.
• Installing and signing in on Android — on phones and on an Android TV emulator in September 2026. Data use — a test on 16 September 2026 on a phone.
• The Android menu paths (“About”, the install permission, a FAT32 stick) — from Google's and device makers' help pages; on a specific head unit the names differ.
• The wrong version number — only what owners write on forums (searched on 27 October 2026). It is not our test.

What we do not know

• We have not run Mayak on a real head unit. Not on any model. Everything above about head units is inferred from how Mayak behaves on Android phones and boxes.
• How the app looks on your unit's screen — we have seen it on phones and on a TV screen, and head unit screens come in all kinds of proportions.
• What happens to the tunnel when the ignition goes off and whether it comes up by itself when it comes on.
• Whether your head unit has the system connection-permission window, a file manager, a browser, an automatic hotspot connection.
• Whether traffic would pass through two tunnels at once if Mayak is on in both the phone and the unit.
• If you installed it on a head unit, write to support with the model and what happened, and where it failed — what the screen shows. We will add your case here.

Short answers

Can you install a VPN on a car head unit? On an Android head unit with Android 7.0 or newer, yes, as an APK file. On a factory unit without Android, no — there you install Mayak on the phone.

How do you install a VPN on an Android head unit? Create the account on your phone, put the file from mayak.ws/dl/app on a USB stick, open it with the unit's file manager, allow the install and sign in. The steps are above.

How do I find the Android version on my head unit? In the unit's settings, under “About” or “System”. If you doubt the number, the install decides: our file will not install on Android older than 7.0. More above.

Where does the head unit get internet for a VPN? From a phone hotspot or from a SIM in the unit itself. The hotspot is simpler: Mayak is on the unit, and the unit builds the tunnel. More above.

The unit says “App not installed”. What now? Most often another build of Mayak is already installed from another source, the file did not copy fully, Android is older than 7.0, or storage is short. The breakdown is in the APK article.

Will Mayak start by itself with the head unit? Mayak has auto-connect, but how your unit's firmware treats it when the ignition goes off we do not know and have not tested.

How much does it cost and how much data will it use? A head unit takes one slot on the plan; “Start” is up to 3 devices for 300 ₽ a month. Data use is about 10% higher than without Mayak.