So we got everything running in my Chrysler except the built in VES dvd player. It has RCAs that feed up to the headunit from lower in the dash that output video and audio.

But they are dead. Tested with the AVIC and an external screen.

Okay - so it must be the player. But it works fine with the uConnect headunit. Even stranger, another person I've been in touch with has both a Kenwood and 8000NEX as he considers between them and the unit works fine with the Kenwood but not the Pioneer.

Any ideas?

What input are you plugging dvd player into, and did you turn on av and aux, in the settings?