My brother got me a Jenson in dash DVD player and I go to hook it up and everything works but there is no sound from the speakers. It loads and plays the cd's but I get no sound. This is going in my Avalanche that has Onstar.

 

remote wire (or power antenna wire) prly isnt hooked up thus for ur stock amp isnt turning on that is if u have one

 

Agreed. I had the same problem with my pioneer.