Okay everyone I need some clarification. I have a 2005 4.4 that i took delivery off in Nov 2004. I do not have the premium package, or BMW assist. I want to add bluetooth to my X5. I need to know if it is already prewired and I just need to buy the ULF. The dealer said that most likely my X5 is not pre-wired, but from first hand experience know that the dealer is not always right I rather get a second opinon. Any way for me to verify, maybe visually?