how did you guys run the wires for your amps when installed under the front seats?

The pictures I have seen and the way I plan on running mine is to run the wires to the door sills and keep them in the same channel as the factory wiring. Them from there go to the speakers for that wiring. For the battery wiring run it through the firewall wherever you can find an opening above the drivers feet.

I agree, that is how my power wires are run but after the door, its behind the plastic panel up to the point where the amps run. I have the rest of my wires running down the opposite side. Its relatively easy to hide these wires. If you want a quick and easy way to run the amp output to your door speakers, I suggest just splicing into the factory wiring either near the deck or near the factory amp, that way you don't have to run extra wires through the doors. Personally I really dont see a significant change in audio performance cheating this way or actually running a new set a wires through the factory wire loom.