Here is a step through of how I hardwired a Nextbase 322GW series 2 dashcam into my 2018 MX5 ND soft top model.
It is a relatively easy task to do and should take around an hour with minimal tools.
I realise that not everyone is confident in pulling the trim off their car so I have tried to describe the missing detail that I was struggling to find during my search on the internet.
The tools I used were a 10mm spanner for the earth connection bolt, a pair of narrow jaw pliers to remove the fuse, a T30 and a T40 Torx bit fitted to a ¼” socket handle.
These are the Torx bits I used.
The Torx bits are the only special tools that are needed for this job assuming you have the others in your tool box. You can buy the Torx bits from Halfords and such like.
You will also need a new fuse to replace the one that is to be removed. More on this later. Multi meter (optional).