I'm adding a new stereo and two amps, what is the best way to run the power wires?
For the 04-06 model trucks and early 07s also...best place for the amp power wires (since they are larger wires) is on the passenger side. You can run them along the rear wall and then under the rear quarter trim panels very easily. Then come under the carpet on the inside of the sill plate harness...this will keep the cables tucked under the edge of the carpet but being on the inside edge of the sill plate, it also keeps them free of feet in and out rubbing on them through the carpet and etc. I have fixed installs before where people just put the wires under the carpet and over time from feet and wear & tear...they rubbed and shorted out...which is why I keep them on the sill plate harness. Factory has em there for a reason...for their wires!!!! We can use em too!!
Reason I stay away from the driver side with the bigger cables is because the driver side is where all the factory wiring is....easier to stay away from!! Depending on the size of the install...I also will pull out the passenger seat and run the wires/cables under there. There is a small channel in the middle to run the RCAs, speaker/remote turn-on wires, etc. If I don't do this, they go up the driver side.
If you need any assistance in any form, wire colors, locations, harness' or anything, feel free to PM me.