Even after following the advice of Eric Williams in his 5 * review I still got background noise on all frequencies in my 2006 Accord. I had read the 1 * reviews before buying this advice. Based on L. Brass "Skip" review mentioning amazon.com's no-hassles return policy I'd decided to give this device a try. Unfortunately, I was not paying attention and ordered this from TechNGnet. They were slow in providing me with a RMA. Two weeks after they received the item I still hadn't received my refund. Only after contacting them did I received the refund. TechNGnet reduced my refund by 20% for a restocking fee for the item returned in the original package with no damage. If you are unsure whether this item will work do not buy it from TechNGnet.