When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
No help for OP, but I have rear window tint and atrocious XM reception to the point I've never bothered using it. I'd lose signal near tall buildings or driving next to semi trailers.
... I have rear window tint and atrocious XM reception...
Many have complained of poor XM reception. I never used it, so... But, in that case, the window tint would have zero effect on the XM SAT radio reception. The XM antenna is in the "shark fin" on the roof.