Yep!
It would have been easy had the PO not ruined the friggin harness!
Its basically plug and play.
I did it to add ipod functionality via a BMW integration unit. You can kinda see it in the bottom right corner.
I finalized the d2 seat switches today too.
That's exactly why I want to do it. You can't get a Grom iPod unit for a D1 radio, so it looks like I'll be going this route!