Recently I took a power mirror setup from a 96 silverado donor truck my cousin was sending to the scrapyard and put in my 93 silverado. There was some splicing involved ; but all I did was basicaly relocate the switch and make extensions. Anyway; the original mirror switch all functions work.. but the L/R dial was broken. So i ordered a new one. Well; 4 now.. part number 15009690. I have tried anywhere from the 20$ ebay specials to the 60$ oem switch. The problem lies when i press the right ; the mirror moves left.. and pressing left moves mirror right. This occurs on driver and passenger side. Up and down work just fine, and left selection controls driver and right controls passenger. But left/right mirror control is backward. No wiring is backward that i can tell. What is yalls thoughts???