I was hoping I could use the Viofo MT1 with the metal bracket screwed to the underside of the window mirrors.
I would have to either drill a hole through the underside of the plastic door mirrors for the MT1's plug to pass through or drill a smaller slot for the cable to sling through, and then through the front doors into the passenger seat area where the main unit would be.
Yes.
If I was fitting it permanently, I would probably make up a new bracket, maybe use plastic, or aluminium so that I can shape it to the mirror, but my mirrors are rounded, if yours are flat underneath then the supplied bracket will work fine. You can fairly easily replace the bracket with GoPro brackets, or a DIY one.
The cable is reasonably thin and will probably fit through the existing conduit for the mirror motor and heater cable, hopefully with the plug still on the end. That will give a neat install. If you have a wide car, then you may be a bit short of cable and have to mount the camera in the centre, unless you extend the cables.
I was hoping to aim the dashcam with its 170-degree FOV down the back of the car, thus losing the front 20 degrees, however the front dashcam should easily take care of that.
The 170 will be the lens FoV. I don't know what the horizontal recorded image FoV is, but it will be around 100°. It is a bit narrower than most dashcams, as is normal for a motorcycle dashcam. For mirror mounting it is a good choice of FoV, but maybe not as much as you are expecting.
It is supposed to be a water resistant external dashcam.
However, obviously it is not vandal proof.
I haven't heard of many issues with its water resistance, and under the mirrors is dry most of the time, even when it is raining, so I wouldn't worry about that.
It is not vandal proof, but it is also not vandal attracting, it is quite hard to spot the small cameras, especially on darker cars. Since you don't really notice them, it also looks fine, even if you do spot them.
You guys think that the Viofo MT1 on the door mirrors is doable?
Definitely doable, and can be made quite neat.
Not necessarily an easy job, but I think you understand that.
Do note that it is a motorcycle camera, it doesn't have everything you get on a modern car dashcam, and it does run off 12V, but I have been very happy with the results.
This sounds like a job for the upcoming waterproof camera for the A229 Pro & A229 Plus.
That will be a 2K camera?
Can you connect two to one A229?
Here are two threads on my MT1, in case you haven't found them:
Some clips from the Beta version while we are waiting... YouTube has not been too kind on the detail, I'll do some frame grabs...
dashcamtalk.com
The Viofo MT1 is a Dual Motorcycle Dashcam, so I installed it on my bicycle, excellent results, but a few issues to note: The MT1 runs on 12 volts, 9 volts minimum, not sure what the maximum is, but probably over 24 since most hardwire kits work with 24 volt truck batteries (needs checking when...
dashcamtalk.com