This morning I go and start my car and let it warm up. Then run back inside, I mean run because it was cold. My hair froze solid in the time it took me to start it. Anyways I go back out and start driving away, and notice that my stereo doesnt have it's usual amount of BUMP. so as a test i turned off my speakers so i just had my subs going, and sure enough nothing. After about 15 min. of driving my amp finaly came to life, my sirius had also been freezing, if anyone knows of any solutions other than a heated garage it would be greatly appreciated thanks.