My installer told me he could make the steering wheel controls work, but the on-board computer...hmm. Honestly I am taking deleivery of the X5 this Thursday so I'm not even sure what the computer does or what I'd be losing.

Putting the stock radio in the ashtray sounds like a decent option. Losing the warranty is troubling but it only has a year left. Maybe the stock radio should stay where it is and the Pioneer can be mounted elsewhere, if there's room.

Larry