GENTEX GENK40A Auto Dimming Rear View Mirror

Installed in 2014 Dodge Grand Caravan by IASITY SOUND in Lethbridge, Alberta, Canada at a very reasonable cost. Programmed by owner. Works perfectly. An absolutely superb solution. Highly recommended.

Came with no wiring instructions. Three wires. Ground. Black. Black with white stripe. One needs battery. One needs accessory. Hope I got it right. Mirror has four wires. Harness turns it into three wires. Wonder what that other wire does? Didn't realize it wasn't brand new. Probably wouldn't have paid as much for a pre-touched mirror. No idea what adventures it's been on.

Did not receive wire cover as advertised

Come with installation instructions. I was able to patch it to the sunroof power supply very easily. Works great!! Comes with Mito Harness.

I'd give this 5 stars if the "after market cable" provided was labeled (or wiring instructions were included) because this mirror/homelink product is excellent. It's in and working as advertised. That's the good news. The bad news is the installation was a lot longer and harder than the "1 hour" other reviewers indicated. I'm a biomedical engineer who actually installed X-Ray machines in hospitals so I know my way around a tool box. Here are some installation hints that may help future buyers install this excellent product: 1. The cable came with 2 different power wires (at least I think they were both power). One wire was solid black and the other was black with a white stripe and the ground wire with a spade lug. I reached out the seller and asked how to connect the 2 power wires. They couldn't remember. I did much research and the consensus of the group was to connect the power wire a ignition switched power source. I connected both wires to a switched power source. I turned on the ignition (with fire extinguisher in my hand) and the Mirror powered up and programmed perfectly. It continued to work after switching the ignition off and on. Yeah! 2. The other tip is: figure out what type of fuses your car uses and buy an "add a fuse" kit from Amazon for your fuse type. My Hyundai uses micro2 fuses so I ordered the correct "add a fuse kit" (pictured below). With THAT said, my Hyundai had tons of "spare" fuses and several fuses for features not included in my car (like power sun roof) but almost all of them were 24 hour power or hot with the ignition switch off. Only 3 unused fuse positions were switched power. 3. Finally a note about the "add a fuse"; be sure to check which leg is hot in your car's used box and which leg on the "add a fuse" if connected to your output wire. Otherwise you will end up not going through your "add a fuse" fuse but connecting your power wire directly to the fuse block. Not good. GENTEX GENK40A Auto Dimming Rear View Mirror