Hello all, just got my 18' GT with tech for a little over three weeks. I enjoy the trial XM feature for the comedy channels they're offering. However, for some reason I've been experience alot of reception problemz like sound muting or cut offs in perfect weather conditions or rains. I live in downtown Vancouver area with not that many tall skyscrapers around. I wonder if this is just a common problem with all XM radio or just my car. Thanks guys!