Retrofit Sport Seats+X275 connector

I have just retrofit a Sport Seats M packet (heated and with lumbar control) in a E87 with normal seats an heated seats. As my car originali doesnt have sport seats neither lumbar support I need to powered the lumbar support and the side bolsters of the sport seats (my car already had heated seats, so I am using the original power to suply them). I also want to get the power suply either from the fuse box or from the heated system power suply. I dont want to get the suply from the lighter bcz I want to have the more original possible instalation. My question is, does any one have the pin numbers for the side bolsters and the lumbar support, from the x275 plug on the seat and from the plug in the car under the seat to take power from there?

And a second question, does anybody know if I can get the power directly from the pin in the connector without stealing the poweer from the wire?

Thank you very much