2011 Subaru Impreza Wagon (not WRX): This only occurs when my daytime running lights are selected. When I apply the brake or use the RIGHT indicator only, the radio dash back-lighting goes to its lowest setting almost as if the tail lights are taking power away from the dash. This happened once before when I used the wrong bulb for a replacement, but now I'm sure the bulbs are correct. The only other suspect is that a while back I mounted a small hitch and installed the wiring to draw power from the taillights (but that has been working fine for longer than a year now). Only thing I can think of is a ground issue or a short... Any suggestions?