Retrofit mirror position sensors?

[Pliind]

In theory you only need the motor module which has the position sensors. 
There was a part used for the XC and Crosscountry SPA cars and a differernt part for the non XC SPA cars and the CMA cars.

I believe you need 31402888 for left and 31402889 for right side. Double check part numbers!

Thank you so much! it's another lead towards perhaps finding the solution! would need to do some wiring, but what have i not wired at this point