Hello, after lurking a lot on google etc. i finaly think i can get may carpc connected to my car. It is my car pc try so i is supposed to be cheap.

I have 1998 after facelift BMW e38 with 4:3 boardunit that shows modes CD changer/aux/tape/radio and i have DSP with amp. connected to 10+ speakers, NAVI, TV+video unit, telephone unit, cdchanger in trunk, probably also radio tunner, but i didn't found it.

Can you please check "sheme" that i draw if mspaint if ia understand the connection right? Thank you.

Some descriptions are in czech, but it sould not be a problem