05 yukon bose satellite radio sounds horrible

[jmorandi]

hey guys i have an 05 yukon with the factory bose head unit and factory satellite radio but it sounds horrible. i have an iSimple added to the system and that sounds and works great. dont get me wrong ill still listen to S/XM but it just sounds horrible compared to everything else. anybody have any quick fixes or suggestions on correcting this? Thnx, Jeff