Someone told me about this and it seems a little crazy but it appears you can get 30% cash back from Microsoft upto $200 using paypal and ebay. I have not tried it myself, but I will try to give you an example.

Start Here
http://www.live.com/
type in BMW Bluetooth

Click top link next to ebay. The one that says "Live Search Cashback" That says you may get 30% off if eligible

In the search box type auction number 120321547562 for E39, X5, E46, X3 and Z4

Now notice the Icon on the top of the page It says you may get 30% off. You MUST follow the instructions becuase the cash back is coming from microsoft and not paypal, ebay or Bimmernav in the above scenario

details here

http://pages.ebay.com/cashbackoffer/...ml?_trksid=m37

I will post an auction for E38 as well so keep your eyes pealed for it. Hopefully I can get it right so it gets 30% off as well.

Might work for other items at ebay if the seller set it up correctly. I can not guarantee that it works, but according to Microsoft it does. I am not responsible if they do not send you a check so you need to follow all the details exactly