I upgraded the audio on my XC with Polk speakers and a RF PBR300X4 amp. Been using the system about 3 weeks and the sound is outstanding! I couldn't be happier, but...here comes the buzz kill. There is talk on another forum that the amp is not compatible with Victory motorcycles and some say their amps have burned out. What the hell? Anyone here with a Rockford Fosgate product having problems? I would really appreciate feedback/comments.