I grabed the wiring harness from a two door with sub harnesses and came away with power windows and mirrors. just make sure you get all the relays under both seats. My junk yard used to let me do all myself but the sold out of subarus and won't get me any .
Sounds like the shop may have had a few extra parts left over,check your warrenty and go back and get it right or a refund, if you did it your self ,buy a Haynes manual for it and recheck all the work. Be safe not dead.
Don