Help...... Need door actuator switch

[lovug653]

My 1987 325is, 2 door coupe has a broken wire (yellow/blue stripe) too close to the switch to solder. This is a little black switch attached to the mount the door cylinder is inserted through and held in place with a sliding wedge clip.

I am unable to find the switch anywhere. Can someone here provide a part number please?
Thanks in advance.