JustinJ94FSB
Newbie
Pulling a single axle trailer 1,900lbs dry and 3,000lbs gwvr with my 1994 k1500 blazer 5.7 tbi. Wiring the brake controller. Can the 12v aux power wire that runs back to the hitch be connected to the junction block on the firewall? Also, the power wire for the brake controller itself, can i also connect that at the junction block? I dont know how much power this junction block can handle. The 12v aux wire is already pre-installed from the factory and it just happens to reach the junction block like it was designed to be attached there. I dont want to melt wires trying to overload this thing though. Any pointers?