Originally Posted by Power6
Some have asked about the wiring, looks like OP had to rig it up the best he could and this is how most do it.
The electrical parts are available, identifying and sourcing them is the hard part, Subaru will sell you mirror parts but not the internal wiring. I have sourced the parts, I am going to make up a run of signal wiring, to see if people would be interested. If you use my wiring, you can make the signal like stock, with the waterproof plug and the wiring snaps into the connector in the door.
I'm definitely interested in a pair of your harnesses! Please send me a PM, or I'll PM you for details.