thanks a lot for the reply!Here are a few pics; one's a close up of the front facing sensor. My understanding is that the rear facing sensor is just for the auto-dimming feature of the OEM mirror. The front facing sensor is (maybe) for dash illumination etc. Sounds like some folks do OK without transplanting this board to their new WB mirror, but I had issues. YMMV
interesting I am concerned over the dimming of the side rear view mirrors, as far I my research tell they are synced and the sensors controlling the dimming is in the interior mirror, do yours dim with your current setup?
