I have these:

http://www.vortechz28.com/bmw/

(the p8 series pictures) in the back where my sirius bracket and ird were supposed to go. I'd like to know what the silver box is that is precisely where the sirius is suppose to go is, and what the connectors would go to?

Please take a look and shed some light on this for me, not only do I not know what it/they are, but I don't have anyplace to mount my sirius ird now.

Thanks,

Joe Clark