Hey guys this is my first post on here, I have a 2007 Commander with the 3.7Litre engine. I am wondering if anybody has had a problem with a humming/buzzing sound coming from behind the dash. It occurs when driving down the road, when stopped, and even after I have shut the vehicle off. I have read about the winshield problem, but I think this is different, it sounds like something electrical to me. PLEASE HELP!!!!!