Avest Side Mirror install

I recently completed my install of the Side Mirror turn signal on my 2016 Three with ATP that was mentioned in two different threads
What Did You Do To Gen4 Prius Today
Side mirror turn signal lights

and wanted to consolidate my install into one place. Thank you again to sfv41901, randomwalk101, and Elektroingenieur for their assistance with checking my work and providing advice in the other threads

Before I go further, this is fairly involved install and these instructions should apply to all Gen 4 Priuses, but I cannot guarantee it will be same, please check with a multimeter and check your work. This is just a guide! If you are in SoCal consider hitting up sfv41901 because it seems he can assist with this install! The instructions that came with lights are attached

Parts Needed
Side Signals (I purchased from ebay, but you can also purchase from Hybrid Pit as well.)
10mm ratchet
screwdriver
electrical tape
clothes hanger or something to fish cables through
Plastic Pry Bars
T-taps (red) (or solder or some other method to tap into existing cables)
fuse tappers
Multimeter to check voltage and continuity

It took me about 8 hours added up to do this, but it was also my first time, so someone experienced probably can knock it down to 2-4 hours.

Remove Door interior trim Panels, I followed this great youtube video

Three screws and they are off, if you have some vinyl, you can wrap your door trim pieces as well for a nice look, I wrapped mine in black carbon fiber

Mirror assembly removal is straightforward once door panels are off, three metal screws and one plastic plug closest to door edge. The existing cables go to connector that easy to disconnect.

Once you have the mirror housing, I recommend taking the mirror off (watch the heater connection and orientation!) and getting the housing off is a little difficult. pop off the bottom trim piece and pop the new one in

Follow the existing wiring of the mirror adjuster and fish cables accordingly through. Reattach Mirror to door

new wiring bundles will have to go through rubber boot to body connector, I believe they are the same length for both sides and have one female/male connector on one end and pins on the other.


Now for the fun part. You'll have to undo two bolts holding the rubber boot to the door. Then tackle the door to body connector, I recommend a thin flat head screw driver


Undo the connector like so


Remove interior connectors with thin tools and roll back rubber flat shovel looking side on itself and it will reveal another plastic piece, start threading cables through, you can start with smallest black/white cable and then use that fish the other through.



Insert into connectors, first unlock the locker bar otherwise new cables won't go in...don't ask how long it took for me to find this out...



Sort the remaining cables by length, there should be two bundles left of each wire type, the longer will be for the passenger side. Repeat for other side and route cables into car, now would be good time to check for continuity with multimeter!

Route cables into car, from passenger side I went from door to glovebox to area below the shifter

Connection to ECU
You probably should disconnect battery at this point for safety reasons
Remove all panels near left foot area.
you should remove the two panels housing the hood release/refuel button and headlight dimming and HUD (if ATP) there is one screw holding it down, this will really open up area to work with main ECU

This the diagram of how the turn signal works and how it translates from the manual to actual


Make your connections for turn signal here with taps mine looked like this

Tap for your ACC/constant/negative

Puddle lights are more interesting, you'll have get the a pillar cover off, the clip is a little hard to get off and you can purchase replacements if you damage it, but I got mine off with the method below


You'll then see this, fish the black white cables to here and tap


I stashed the button controls here and chose to have DRL on and sequential on, but you can choose whatever you want!

 

Forgot the completed pic!

 

Yep! Looks pretty much the same!

 

That's weird, but congrats on the rest of the install. The black puddle lights should go to the purple negative wire. I actually like having the puddle lights now that they are hooked up right, I originally was going to give up as well, but I think its worth it.

 

A user PM'd me asking about the ACC and constant power locations and I figured I'd put it in here as well since I can't edit the original post.

Hard wiring a dash cam | Page 2 | PriusChat

 

That appears to be the first gen one, I got this one that has more light segments

Turn Signal Lights Sequential LED DRL White Black for Camry XV70 2018 Prius XW50 4580351391140 | eBay

However, if you're interested in folding mirror option, I believe @sfv41901 with Hybrid Pit has the avest kit and some folding mirror options for sale, you might as well do that if you're opening up the doors. I did mine before he had that option otherwise I would bought from him!

What Did You Do To Gen4 Prius Today | Page 6 | PriusChat

 

Looks pretty cool, ebay is filled with some other variants under 60cm LED Switchback White DRL

60cm LED Switchback White DRL Tube Light Strip Amber Sequential Flow Turn Signal | eBay

I'm pretty happy with the current implementation, but it does look pretty slick and easy