I have an 09 ford with an OEM install sirius system. It sounds great, Quality is amazing. I also have a sportster 5 with a lifetime subcription on it that use mostly in the boombox while I work that also sounds great. I am not sure I want to spend the xtra money on another subsciption for the truck if the sportster 5 is gonna sound just as clear as the OEM install. Has anyone used the aux input on a OEM car and how did it sound compared to the factory unit?