Installing a Auto dim and homelink mirror

Let me double chk my harness.

 

On my 2012, the wires are internal......meaning there is no plug on the back of the mirror

 

Here's what I think it should be.

The ten pin socket only uses 3 wires. Looking at the connector from where the wires enter, bottom row [opposite the release tab]
Left = Yellow = HomeLink power = +12V constant (always hot)
Space
Center = Black = Ground
Space
Right = White = Mirror power/compass = switched +12V

If this does not match what you see, it is my best guess. I am nearly 100% certain of the color to function correlations (ie: Yellow = 12V constant, Blk = Gnd and White = switched 12V). This is almost always true of any electronics in an auto.

The green wire should be for "reverse feed" which doesn't need to be hooked up. It is used to turn off auto dimming while in reverse. I really don't know what brown is for but, I'm virtually 100% confident that this setup will get you up and running.

 

does anyone know if a mod III 2012 has the harnes installed already for "plug and play" or are all of us wirring these in the gen III? I miss mine from the Gen II and would love to add it to this one.
I've seen them on eBay and Amazon for about $160 and have been so tempted.

 

Chances are its not going to be pre-wired but that shouldn't stop u from installing 1. I did it on my gen2

 

The wiring will not be there. No plug and play but this is such an easy thing to do, you should not let that stop you. This is a mod I do to every vehicle I get. I don't pay for the option at the dealer or consider it when I buy a used car. It is so easy to do and these mirrors are readily available at most scrapyards.

 

I never thought of a scrap yard.............duh

see what happens when you don't drive one of the big three for a while, you forget about scrap yards as a parts source.

 

And... you can use virtually any mirror made by GenTec. I have found that Toyota, Nissan, Subaru and Hyundai all use the same type of mirror mount. I'm sure others use the same but, I just haven't figured it out. Also you don't have to get a mirror specifically for a Prius. You can get the Camry, Avalon, Tacoma mirror (etc). Just loosen the mount for your mirror b4 u go so you can take it w/ you to the yard.

Or... if you don't want to hassle w/ a yard, Ebay has several available for between $50 and $250. Just make sure you 1) verify the mount and 2) make sure you get the pigtail (wiring with the mirror).