Addding extra backup lights

[roving4s]

Any issue with splicing into the stock wiring, with a 35w light ? Just picked up 2 35w sealed beam, tractor spotlights.

 

[89Suburban]

I ran a relay for mine right on the firewall. Ran a separate feed line to those rear aux lights and tapped into the reverse wire coming out of the firewall to trigger the relay. Also grounded to relay the firewall and installed a fused power to the relay off the junction block.