<strong>Yahoo Message Number: 819</strong>I bought a used MH ('00 Magna) which had a TracStar SV200 Satellite Antenna installed. It worked as advertised for about nine months and then started banging the roof when turned on. I called the mfg. in Orlando, Fla. (no 800 number) and managed to talk to a tech. After asking me to perform certain tests, he informed me I needed a new sensor...