Post by
DaleHeller »
https://forums.nicoclub.com/daleheller-u85115.html
Tue Sep 16, 2008 3:46 pm
Never experienced this on my M35 with factory XM. Seems I read somewhere that there was a problem with the antenna leads coming loose on the '06 model. You may want to do a search, or go back and insist the dealer fix it. In other words, satellite signals do not fade - they are line of sight transmission. XM has multiple satellites and memory for holding steady music as you go beneath underpasses. In metro areas, they have local (similar to FM) broadcast signals to fill-in between buildings, etc.