Here's what I got. 07 TB LT with non bose. I wanted to run a 4 channel amp so I got the PAC RCA box to run RCA cables right from the head unit. I couldn't figure out how to get wires out to the speakers in the doors so I tapped into each speaker at the pillars where the wires come in from the doors (if that makes sense). Once I made sure it was the correct wires, I cut the wires about 6 inches downstream so now I've bypassed wherever the factory wires head to in the back of the truck from the speakers. I did that for all four, installed the amp, made my ground and went to put the positive lead on and heard a 'pop' noise. I immediately disconnected the power, got really nervous, but everything seemed to work. The radio turns on, I can control it from the steering wheel, change bands, go to xm, etc, so I thought I was in good shape. I had to leave for work, so as a quick solution, I just reconnected the factory wires to the speakers on the left side of the truck to get some audio for my 40 minute drive. But no sound came out. Not only that, I tried the headphone jack in the back for the rear passengers and no sound there either. Is there a fuse that would do that? I mean allow the radio to turn on but no audio to play? I'm soo confused now. I hope I didn't blow some internal radio fuse.