I had them on mine. Took them off cause the truck went back on lease. Take off the door panels to run wires. A fuse tap in the fuse block for power. Add a ground and connect to switch. The mirrors pop off when pryed from the bottom. These snap in place. They're from a sequoia. There is a write up on this forum I followed.
https://www.tacomaworld.com/threads/oem-heated-mirrors-diy-mod.193528/#post-4206444 From a highlander
