Install Android Radio Head for VW Golf MK5

Just some random electronic stuff that I did a while ago with my VW golf mk5

Remove the tray, it could probably be a speaker on GTI version instead.

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Remove air duct assembly, careful to undo the hazard light cable

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Remove the trim around the front panel

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Just one big harness and 2 antenna plugs for the original radio head. Compare to the chinese android radio head

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You will need the converter cable that comes with the kit, and probably buy the dashboard button cover as well

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Plug in the CAN bus decoder box and connect to the reverse camera

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Connect the power controller board for the camera and put everything back

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Yes, that short piece of wire actually is the wifi antenna

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Some screens are a bit too big and the corners get in the way of the clips or the corners of the panel trim, like mine

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So you need to chop off a bit on the corner of the bezel

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And install the reverse camera as well

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I could just hook on 12v powering up radio head and that was it, camera ON/OFF with radio head. But that wouldn’t be good.

Testing the camera power switcher

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Basically, the power switcher circuitry is just a buffer/driver. Just need 2 transistors and a few 10k resistors. Even though the reverse camera doesn’t have IR LEDs and it takes only 50mA, but yeah, I don’t know the capability of output of decoder box and thus I made my own driver for this just to be safe. The PNP BJT can do 500mA, plenty of juice to *drive* the camera.

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Reverse camera at night

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There are flaws on this chinese radio head but the benefits outweigh the flaws.

- It provides a coloured LCD screen, exactly like an android tablet
- It runs android apps, such as google Map and whatever on google play store
- It supports CAN bus and reads CAN message so that steering wheel works just like original VW radio head
- It can do radio like a normal radio head and has GPS built-in, yes it does run Google MAP
- But I prefer igo app on the ROM instead of Google MAP
- It does bend the backing camera guide lines just like original one.

There are a few setbacks

- The screen is a bit big so that I have to chop off a bit on the corners of the bezel. I guess, no more warranty for me.
- Bluetooth name keeps changing back to CarBT, a bit annoying
- I can’t find an aftermarket reverse camera without fixed guide lines, so there are 2 sets of guide lines on the reverse camera screen, a fixed one from the camera and a bendable one that bends accordingly to the steering wheel.
- Doesn’t provide power output for the reverse camera, so it was a hiccup on this part and I procrastinated for a few months to install the reverse camera.

 

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