Dezertjeepin

I got a D3 unit from a friend of mine that was selling his Jeep (same Jeep as mine).... Everything worked perfect when it was installed in his Jeep and when I went to swap it over to mine I found out that since I have the premium sound system (and he did not) I needed the amp turn on module. So I got that and installed everything. Now for some reason the only sound that works is off the radio. When I go to the iPod i can control it and change songs and it shows that the music is playing and making progress but there is no sound... when I insert a DVD it plays on the screen but again makes no s

I have an 07 Wrangler and got a D3 from a buddy that is trading in his 07 Wrangler. The only difference is that i have the premium sound system and he had the standard sound system so he bought all new speakers and rewired everything. When i installed it in my jeep, i got the CORRECT wiring harness and wired it up, but nothing works but the radio. When i switch it to iPod, it plays and ticks down the time for the song and i can control everything, but absolutely no sound comes out. Not even the beeping that you hear when you press the buttons. Switch back to Radio, all sound works. When i put