What mounts did you go with? I'm looking for the combo mirror/light bracket ones. I think the best way to run the wiring is down into the cowl/engine area and then into the cab through the giant rubber grommet I stick everything through below the steering wheel. Actually, there shouldn't be wiring from the light into the cab, you should have wiring from a switch to a relay ( usually in the engine compartment) and then a connection between the battery and the light via the relay. Personally, i would use 2 relays, one for each light.