I replaced my oem navigation screen with an 869 but because I couldn't input the magic pin into the nav I lost voice control of my radio/ac and it wont switch to the backup cam before you input the pin.

I finally got a rgbs converter working so I can actually "see" the screen but the joystick doesn't work anymore so I guess I need to rig up a relay to switch input from the Lilliput to the stock nav board.

Can anyone give me any advice of where to start. I trashed one screen a while ago because of the damn ribbon cable so I'd like some solid info before I go poking around again.

Thanks