this place did mine a few years ago. they still have my pics of my X5 when they installed my angel eyes :D

he's located in Montgomery Village, MD and usually does most of the work on Saturdays. he's very familiar with BMWs and has done a lot of mod work for me

http://www.performancetechnik.com/

Why is everyone freaking out over this? It's literally plug and play. I sold my DICE to a 330 driver last night, and installed it in the parking lot for him in 30 seconds flat.

I suppose it depends on where you want to put the DICE unit. In my case, I got the DICE unit with the radio interface (as opposed to the trunk interface). This entails taking the head unit out of the housing and installing the unit. It could be an easy job, but I guess I am just not sure......