So I was on ttt-mirror.com, and it says in the replacement parts section, that you can not retro fit light modules in a mirror that didn't have them before....

* You cannot upgrade your mirror with heated glass or the LED turn signal & clearance lights, by retro-fitting these replacement parts.

Really??? It looks like you can just pop out the cover with a screw driver, and pop the module in.

Has anyone done it?

Just wondering......

It's probably due to the wiring inside the mirror. I bet you'd need a new harness inside the mirror and have to rewire the heated and powered glass to do this. Plus the marker lights for ttt mirrors have a row of led running lights and another row of led blinky lights so the wiring is proably a PITA. It would probably be more cost effective to sell yours and upgrade.