speaker problem

So I bought a 07 RT hemi a couple weeks ago. They had a jvc 6.1” radio in that was rough. So I replaced with a pioneer 1500nex. They also had a PAC interface module already in there. Hooked it all up but I get no sound out of the back speakers. (This is the 7 speaker boston acoustic System) any...

I just replaced the head unit in my 07 R/T. It’s the navigation model. I used the replacement interface to hook up the new radio. Got it all together but no sound out for the rear speakers. (It has 4 6x9s in the back). Am I missing something? I also read something about mixing up the connections...

Ok, I upgraded my speakers to 2- 6.5 rockford fosgate punch p1s652 for the front and 2 rockford fosgate 6x9s p1694 for the rear and i am addin a 8 inch kicker sub 10c84 with a Jensen 760 watt amp. Specs are: 6.5s- rms 55 watts peak 110 4 ohm 6x9s- rms 75 watts peak 150 watts 4ohm 8inch sub...