Improve XM Radio Reception?
Is there anything we can do to improve XM radio reception? It seems to be, pretty much, line-of-site. But when I go under a narrow overpass at freeway speeds the reception drops for a split second. It seems there'd be a way to prevent this.
I have the shark fin antenna on my 2014 JGC. I searched here but did not see this topic discussed. I'd imagine it has been.
Can anything be done?