S14 stock mirror question

[Bobafreak]

I had to purchase mirrors recently due to them not being there and its come to my attention one wire has an extra wire compared to the mirror. The wiring from the door has 4 wires. 2 purple, 1 yellow, 1 blue. The mirror has 3 wires. 1 yellow, 1 blue, 1 purple.
I was wondering do I connect the 2 purple wires together from the door to the one wire from the mirror? Or is there another way?