Trying to wire up my new rocker switches into the dimmer but can't seem to locate the correct wire. I tried all the wires coming off the multi-function stalk to no avail that I could tell. Reading the factory service manual, the BCM interprets the signal from the stalk and then send power accordingly. So I really need a wire going into the instrument cluster or radio. It looks like a orange/brown at the radio is coming from the cluster, but I have no idea if that's the correct wire. Any help???