Have a 2010 GS and had a Stealth Box subwoofer installed with its own amp. For some reason and since installation, the radio reception is very poor. Stations sound like a "drum roll", not static. When I remove the fuse for the subwoofer so it does not come on, the stations are fine.

Brought it back to the place that installed the sub and they spent hours troubleshooting to no avail. They told me the issue was with the radio and not their equipment. Told me I may need to get a software update.

Will bring it back to the dealer for service but they may tell me its the subwoofer thats the problem.

Anyone else have this problem or know of this?