Did you guys run the wiring under the carpet in tubing up to the dash? I'm thinking this is the best way to protect the wiring. Did you fasten it directly to the floor with sheet metal screws or bolts? Did you put something in between it and the carpeting? How did you fuse it? I'm thinking it is 400 watts, so a 40 amp circuit breaker with no. 8 cable is gonna work OK.