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Auto Dimming HomeLink Mirror Install on LE - DIY

Exterior / Rearview Mirrors written by @chinna Toyota Venza 2021
01.21.2022

Well, every car I owned last 15 years had Auto dimming mirror with Garage opener. I did not want to go for XLE just for that. So decided to install one myself, but not the same one from XLE as that is quite a bit expensive at this time.

I also thought of adding front video to the mirror. So I bought Tundra mirror with video input, compass, Homelink4 and a camera. Finally received all parts I ordered to start the project.

First I removed the overhead console/light assy fishing for any power. No, there is no wiring for mirror there. Since all lights are led, the wires coming in are ultrathin. Also, overhead lights work without turning on power, so that is not a good idea to use. Even if I can find ACC controlled power, the wires are so thin, we might break those trying to tap. So decided to take power from Driver Dash side.

One more caveat I realized is, the Mirror stem is shorter and straighter than original one came with the car. So back of the mirror is touching the ADAS cover behind mirror and not allowing full adjustments. It would be problem for taller people for certain.

So, I got a extension block to extend the base by an inch and it seems to work.

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