2008 Dodge Ram 1500 W/Infinity Amp Turn On Lead?

I am pretty sure it only uses the rear input of the harness. This would not stop audio, you have another problem. Turn the volume of the deck wide open and put your ear up to a speaker. Do you hear any audio at all? Some of the Pac harnesses have RCA jacks on them. Some applications require that you cut the jacks off and use speaker wires. I do not know if that is required on your vehicle. I can check on that Tuesday.

I am getting no audio at all. I've tried connecting both the front and rear speakers to the rear input with no luck. I've also tried connecting the front speakers only to the rear input with no luck. I'm really not sure what the problem is?! I've got all other connections run as told in the diagram. I just can't seem to figure this one out? On the factory radio I have 2 connections. On all the aftermarket harnesses I only have one. Also, my harness doesn't have rca jacks, so I don't think there's any problem there, but who knows?!

Do you have a volt meter so you can verify that there is 12 volts on the Blue/White wire of the Pac harness?

I've got a volt meter, but I had to give her back the truck so the next time I get a chance I'll make sure and test the voltage. Thanks again for the help!

the pac unit should have a red light that u can see if u have power there the problem im having is that cant get the unit to shut off the factory unit used to stay on when I turn truck off until I open the door now after my install the amp shuts off no sound but the head unit stays on what wire do I need to tap into

Where did you connect the radio's Red Wire?