XM radio worst ever customer service lenthy hold times lenthy customer service only to be told need to speak to someone else. Cancelled a sold car JUNE 25 BY THEIR RECORDS AND THEY STILL AS OF SEP 4 HAVE NOT CANCELLED THEY OFFER NO EXPLAINATION AS TO HOW THIS COULD HAPPEN. i HAVE ABOUT 3 HOURS TOTAL TRYING TO CANCEL A SOLD VEHICLE!!! IS IT CANCELLED NOW?? iT WOULDNOT SURPRISE ME IF IT STILL DOES NOT GET RESOLVEDiTS TOO BAD THEY HAD ME AS A CUSTOMER BUT THERE CUSTOMER SERVICE IS BEYOND BELIEF. tELL ALL YOUR FRIEBDS WHEN YOU NEED TO CANCEL... read full review »