I had a Urive Shotgun in my old car, and it was decent but the software sucked badly so I abandoned it and went with a new one.
Click on the 1st photo for a link to the the unit I chose on Amazon:

The menu is understand and 90% of the items were right by default. The GPS antenna is inside the front camera mount so no extra cable or mounting position to worry about and rear camera is nice and small so it is not in your line of sight at all. I ran the cables along the headliner and down the passenger side tucking them under the trim. It was easy enough to pop out the sill covers (be gentle so you do not break the clips!) and weatherstrip so it went in very easily. Right now I am powering it with the cigarette lighter cable that came in the box, using the socket in the center console that I routed under the passenger seat behind the seat motor. I want to get the "parking guard" cable that will allow it to record when the car is parked as well by allowing the camera to switch from ignition to constant power. On my previous car I just wired the constant power to the dome light since it is the easiest access point and nearest to the camera. I will post a follow up when I swap out that cable.
Here are my install pictures:
Click on the 1st photo for a link to the the unit I chose on Amazon:

The menu is understand and 90% of the items were right by default. The GPS antenna is inside the front camera mount so no extra cable or mounting position to worry about and rear camera is nice and small so it is not in your line of sight at all. I ran the cables along the headliner and down the passenger side tucking them under the trim. It was easy enough to pop out the sill covers (be gentle so you do not break the clips!) and weatherstrip so it went in very easily. Right now I am powering it with the cigarette lighter cable that came in the box, using the socket in the center console that I routed under the passenger seat behind the seat motor. I want to get the "parking guard" cable that will allow it to record when the car is parked as well by allowing the camera to switch from ignition to constant power. On my previous car I just wired the constant power to the dome light since it is the easiest access point and nearest to the camera. I will post a follow up when I swap out that cable.
Here are my install pictures:




