RickJ

I have a 2015 CMax, and I'm installing a Blue Ox baseplate. I'm also using their wiring accessory kit, where you add 2 bulbs to the taillight housings, so the lights are operated by the RV, not the CMax. So far, the installation is going fine but...... how/where can I run the small (4 wires) wiring harness through the firewall? Thanks