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Frameless Auto Dim Rear View Mirror w/Homelink

41K views 83 replies 39 participants last post by  LifeForLife  
#1 · (Edited)
Few days ago I installed a Frameless Auto Dim Rear View Mirror w/Homelink in my son's GR4.

Install is fairly straight forward. I used Posi-Tap Taps 22ga to tap into wires of forward collision/sign reading camera (16 pin connection pictured below). I used pin 2 and 9 (red and black wires) to power the mirror and V1 radar detector. Added a dash cam as well (needs a power adapter). Taking cover off is not that difficult, followed instructions in this video.

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Hope this helps..
 
#9 ·
The frameless Homelink mirror you installed must have a much slimmer body than the old auto-dimming mirror I had laying around the garage. The body of it was too fat on the backside and I couldn't get it into adjustment. I had to remove the plastic shroud around the camera and take a heat gun to it to cave it in a little to make enough clearance. Not the end of the world, just didn't expect it. Fortunately there's a lot of nothing behind that shroud.
 
#19 ·
NEW Advent/Gentex Frameless Auto Dim Rear View Mirror w/Homelink® V5 & Homelink® Connect - For Select Non-Prewired Toyota Vehicles 2014-2023
Optional - Select the wire cover for your mirror kit:: No Wire Cover Needed
OPTIONAL-Do you need a windshield mounting kit?: No windshield mounting kit needed
Required - Select your vehicle's installation information: 2018 Corolla

Product ID: 100076+INSTCORO18
 
#16 ·
Those of you with the Frameless Homelink mirror might want to add some sort of bump to the center of the Homelink buttons, as they are out of sight and don't really have any tactile features to help you tell which is which. I used some dots of thick foam tape until I think of something better.
 
#21 ·
Just did the mirror install following the above directions.
Sourced my mirror here (same mirror):
Ended up being a little bit cheaper, and being Prime I got it in 2 days.

Homelink works well and the lights on the buttons are not intrusive. Dimming is really fast. However, even though the mirror itself is frameless, the dimming portion has a border of about 2 mm.

I went with the Posi-Tap Taps minis. They worked perfectly for the gauge of the wire:
 
#23 ·
I too would like to know if we could tap into a power source for review mirror with Homelink for a dash camera, does anyone have a electrical interface documentation with voltage and amperage as it would be nice to just add an additional harness to the existing space behind my review mirror plastic housing area, I found it really nice that you can slip the dash cam cables around the plastic shroud. I that cover would hide everything if we could get power from it, Even if it was a 12-volt source, we could add a battery elimination circuit that steps it down to the proper voltage and use say a USB type-c which most – cams use these days and have a type c breakout board that we can then solder a harness end to I personally don't even use the home link feature but it may have been a great choice because I'm not sure if The versions that didn't get that option have an existing wiring harness somewhere in the roof liner, which is also another thing to to consider if running cables through the headliner all the way back to the rear camera It looks like there may be a space between from what appears to be a fiberglass sort of hard inner shell roof liner that seems like it's separated or lack for better words divided from the actual chassis. Let me know y'all's thoughts

https://www.amazon.com/dp/B0BV2FRBCS

And for those who are wondering, this is the camera system I'm installing.
 
#25 ·
Note: Parking mode with the camera I'm installing provides surveillance on your parked vehicle. When the engine is off. Hardwire Kit is used to provide continuous power and protect your car battery from being drained. They manufacture of this product recommends to buy VIOFO HK3-C ACC hardwire kit cable for parking mode recording.

Well, after a quick test of turning the vehicle off opening the door, closing the door, locking it as if everything inside the vehicle is turned off. Obviously the power outlets aren't continuous. They shut off when the car is off but it seems when I press buttons on the review mirror I get a light and where there's light. if this is constant even when the car is off then that's great, cut the harness short and tap it in possibly, So this device operates on 5 volts and no more than 2.5 amps. Yes, the device is type c but it probably is just a 2.0 version of it. Plus the 12 volt adapter states it's 5 volt on its output at no more than 2.5 amp. So if anyone knows if there's a viable supply we can tap into these are the requirements.

Additionally, I'm not so comfortable pulling the inner paneling off. I guess it's the front something pillar where the tweeters are as those have airbags labeled on them and I'm not sure if that's safe to disassemble.
 
#42 · (Edited)
None of those look like a match, as the Forward Camera connector is 16-pin. If you really don't want to cut into your factory wiring at all (it's nbd...), I suggest buying or making a pair of taps like these:


The pins just shove into the backside of the connector where the wires enter the connector (friction fit). The kit comes with 3 different size of pins to fit different connectors, use the largest one that is a snug fit.
I just wanted the option for quick interchangeable items and/or removing it to leave it completely stock.

I did however find this? This is a 16 pin however have contacted them with OP’s -6 pin diagram to verify which adaptor is theirs is a fit if anybody should be interested I’ll follow-up.
 
#45 ·
@MRT2 @RedBeard Just to be clear in case this is your first time messing around with wiring in your car: not every 16 pin connector is going to have the same pinout. In most situations, there isn't a "standard" wiring diagram for a particular type of automotive body plug. Don't assume that just because two connectors are physically compatible, that you can safely plug them in together. That would be incredibly naive.

So, yeah...it's no surprise that some random "Dongar Tech" 16-pin adapter you found is not suited for this purpose at all.