purchase updated version of this bluetooth adapter here:
ROSKINC.COM or shorturl.at/lruR7
this video i show how to install the bluetooth aux adapter to the e60. this is exactly like installing aux except to get power we have to tap into the radios harness accessory wire for 12v and ground. this isnt the most top of the line bluetooth like dension or grom, but for a fraction of the cost and quality of sound, well worth it especially since now iphone 7 doesn't have the aux jack, don't have to worry about adapters.