afer much searching with no luck, i thought i might as well ask...

i got a set of reverse lit white face gauges, put them in and all that crap, but im no master electrician and im looking at the wiring harness confused. there are two wires coming out from a dimmer, one red (w/a fuse) and the other red/black that has a metal circle on the end (looks like a ground wire)

any ideas on what to do here?....i thought that i'd just be able to wire them into the power source for the existing lights or even the parking lights, but this thing is kinda weird looking....can anyone help me out?