How to integrate touchscreen to your head unit (Phaeton but should be similar)
 

I came across an interesting way on how to integrate touch screen and Android/PC to your head unit at a Phaeton forum.




The entire thread is here: http://forums.mwerks.com/showthread....Car-Pc-Windows


And here is the useful doc of how-to compiled by ddantes: https://www.dropbox.com/sh/ogygjmvow...carpc.pdf?dl=0