I'm installing my Laser Jammers on my 2012 335. It comes with a round kill switch for users to shut off the jammer so the hard-working officer doesn't catch on. Anyway, I really am not interested in drilling new holes and adding a switch that doesn't go with the interior. So, I thought I'd just add a factory switch next to the downhill assist button. I gotta figure this is a slam dunk, but thought I'd ask if anyone's done it???