i can believe that but in this case i removed it from the roof and set it in the seat as well and did the same thing. an engineer that used to work at centurion in lincoln when cell phones had antenna's said something interesting. centurion made antenna's for cell, 2 ways and radios for various companies, motorola was one of the biggest accounts. he said to check the freq the sensors and pcm were operating at as if the same or too close it would cause this issue. i do not know enough about that spectrum but maybe another member does and can shed some light on that thought?