Dimmer switch wiring
So I recently picked up an 01 firebird 3.8l base model for cheap cheap. ($700). It runs great but has a few problem, most of which I'm ironing out thanks to the amazing community.
My courtesy lamps stopped working, I replaced the resistor in my BCM but still to no avail . So I bypassed it and installed door switches, it works great now. However, the dimmer switch when rolled all the way up will not turn on my lights. I understand that I need to just spice into the ground wire, but I'm not sure which wire to splice into. This is the last part in getting my courtesy lights working as they should (sans BCM). Someone please help!

