I just bought the BC GPSK, and set it up in my car. I plugged it in to the serial port, as well as the car power and it isnt recognized by my BCD536HP. The red light blinks like its receiving signal, but the GPS doesnt show up on the scanner. Tried to hook it up to my BCD436HP, and it wouldn't locate either. Still blinks though. Any thoughts or help? It's set at 4800 right now.