adding equipment

I am installing a video system and would like to avoid pushing a wire through the firewall. I do not have power seats and I noticed a 25A circuit breaker in the fuse panel designated for power seats. Do any of you know if I can use this to power an inverter (through a relay)? Is anything else run on this circuit? Are there any spares in the myriad wires that were run through the firewall in the factory?

2001 Chevrolet Tahoe with factory subwoofer and OnStar

BTW - For those looking at an aux input adapter...I installed a P.I.E. GM9-AUX adapter to pipe the PlayStation through the aux input of the factory HU and it works great.

Thanks for any info on the factory wiring.

I would say that you would be safe to install a video system with that. Using a LCD/TFT display does not require very much power at all. The main drain would be the Playstation, but it sounds like you won't be running that from the 25A breaker. I used to have 2 7 inch widescreeds in my Acura Legend and I ran them off the 20 amp radio fuse with NO problems... I also had a SONY XM Radio PnP hooked on that SAME fuse. I say go for it.