Hi everyone. I have a 2007 Ram 3500 Mega Cab. And i recently notice that the dvd player in the back seat will not turn on. The kids noticed at night the the lights flicker on and off. I have an aftermarket dvd player installed in the front not sure if this is causing the problem. I also noticed my door speakers have gone quiet and most of the sound comes from the ones on the dash. Any advice or help with this would be greatly apreciated thank you.

 

Sounds like you have some wiring issues. It would be best to take everything apart and test it all independently so you can see what it bad and what isn't and trace the issue at the same time.