car audio/wiring help asap

well, i have it working now. so i dont know if i want to bother redoing everything. i just need to have the lights on…
now i want to make it look pretty so i may end up running some stuff again anyway. would you happen to know what wires i can use for hvac? that would be the easiest if there is a 12v going there.

it works really well too. i would recommend this if anyone wants something like this. they have wiring harnesses for pretty much every car.