I would like to purchase a Sirius receiver for my 2005 X3 with Satellite Prep. I have a friend who has the same truck and we checked his part# which is 65-12-0-398-140. After calling some dealerships they tell me i need part# 65-12-0-416-377 which is about $300 more expensive. So my question to all of you is, will the 398-140 work with my X3? Any help will be appreciated.