Thank you for your information, is the data that I'm locking for. I'm buy 3 weeks ago my Journey and have this kind of radio, I'm ask to the Dodge dealer and is very expensive the roof srcreen and I have the idea to put a screen conect to my radio.
I will try this afternoon.
Do you have more information about thr rear c1, c2. c3 pin out?
Thank's again for the info