I went with the Blackvue DR-590X. You can get GPS with the 750X and 4k with the 900X (but at a lower frame rate). It comes with the hardwired kit and as you can see is pretty hidden. Running the power to the fuse box is pretty easy. 4 screws on the overhead console and a screw on the driver A-Pillar. I think the toughest was finding a solid ground to use.
All the models can be had with a second (rear cam) and I think they just came out with one with a 3rd interior view. Personally, if you get rear ended it is their fault. The front camera provides context. Personally, I do not see many use cases that the rear camera aides for identify fault. Parking surveillance, sure, but that is another discussion. Hoping to use a cam to identify a vehicle in a hit and run is well, hit or miss. With all the factors of environment and camera exposure the plate may or may not be washed out. I really wanted to get GPS, but the 750X was almost 2X as much. And while 4k was nice ($$$) the better resolution is offset by the frame rate that makes it blurry. But the key is IF something happens, it provides a pretty conclusive witness to what occurred.
There is an Apple/Google app that you can install to get the videos. I had a bit of trouble getting it setup initially; but once you get the codes and figure things out, it is rather intuitive. I disabled the audio alerts and essentially you do not even realize it is in the c ar, err truck, err "truck", err Honda.
Originally on my old Subaru I was looking to get something to mount on bumper/grill/exterior because of the camera system on the windshield. There are a couple good motorcycle dash cams that are waterproof. Quite expensive but they could work with any vehicle.
View attachment 419964
View attachment 419965
View attachment 419966