I would like to purchase a 2012 Headunit with Bluetooth and Sirius built in and use it in my 2009 335i with Hifi.
Has this been done and how? Eveything I searched came back with Mulf and TCU retrofits.
I can code which I am sure is nessesary & additional hardware that will need to be purchased?
http://www.ebay.com/itm/330813948453...84.m1423.l2649
This is the headunit I want to buy.