Fitted paddles in place of the OEM buttons to my E55, this week, here's a couple of photos of the finished product. I'm not particularly hands on, but it was pretty painless, followed dvb247 linked instructions, and with additional help/advice from Alps. I did have local MB remove and replace the wheel, (£85), paddles cost £112, and took me about 4 hours, albeit I found that I did not have to swap over the internal switch printed circuit boards, as advised by Alps regarding after 04 models, and also tests I took which in my mind confirmed Alps advice, only had to cut the leads to new and old and resoldered the old button plugs back onto the new paddle leads, so I could plug into the existing steering wheel wiring harness. The worst thing for me was assessing the length of the fixing screw to the new paddles through the steering wheel, but sorted it by trial and error. Even local MB, were very interested in this fitment. I do have a couple of tips, will try to post a fitment post later this weekend.