A buddy of mine has one of these on his car. Earlier he was putting his radar detector up, and accidently hit the button on it. After he did that, the car started missing very bad, barly idling, puffing a bit a black smoke. Almost like its in limp mode or something like that. This ever happen to anyone? Might be the wrong section...but i figured the knowledgeable people are in here rather than the lounge