I just purchased a sun visor that had a current Homelink module. The module is small enough that I can just fit a part of it inside the headliner at the windshield interface. Now my only problem is to get power to the unit. I am thinking that there must be a wire for the sun visor vanity light. The only problem is that wire will only be hot when the car is on. I would tie into one of the wires going into the front radar/modules but am concerned that there is not high enough amp to run everything. I don't want to mess with the forward accident prevention system. Any ideas? I wish I had access to a service manual I could see what was there. There is a interior light that should draw enough current. The question is how to gain access to it?