The Sirius saga continues. I have a my 2000. I bought the correct Nav IV unit, and then bought the correct Bm53 radio, Sirius set-up and everything else I needed for the install from Bimmernav. It is hooked up correctly per their instructions and technical help. But now that I am done with the job, there is still no Sirius option on my radio. I have tape, CD and radio. That is it. I have a call into them for some help, but thought I would post here as well in case anyone has dealt with this before. Thanks much.