I had XM radio added to my 2007 Ridgeline when I purchased it. I noticed the antenna was mounted on the inside of the windshield. My reception is absolutely lousy. Both my previous vehicle and my wife's vehicle have XM and I know the reception is terrific. When I brought the truck back to the dealer (thinking the antenna might be faulty) I was told that I had to live with what I have because it is in perfect working order and there was nothing else they could do. They told me XM sells an antenna signal booster but I have yet to find one. I know that if the antenna were mounted on the roof it would make a difference but the dealer won't touch it. HELP!