The wire is 8 gauge with a 60 amp fuse at the battery. I mounted a fused 1 to 4 power distribution block under the floor just behind the passenger seat. The trailer wiring, a 2 channel 50w amp for front speakers and a powered subwoofer will get fused power from there. Amp will be under the floor too with the sub under the passenger seat. I'll post pictures when i get around to doing the audio installation.