MK4 upgrade and sirius

[blakesr]

I just purchased a 2002 X5 that currently has the MK3 navigation in it. I asked the dealer if I could upgrade to the MK4 (DVD) navigation and also add Sirius at the same time. The dealer told me he COULD upgrade to the MK4 (has not given me the price yet) but that once I did that, because I have a 2002, I would still not be able to add Sirius.

Does anyone have thoughts on this?? The main reason I am ugrading to MK4 is to be able to add Sirius (even though I am in a 2002). Do you guys have any recomendations of what I should do? My goal is to have Sirius (that is hard-wired and will run through my screen) and the better nav is a bonus.

Any help is greatly appreciated!