Halfords fitted front and rear dashcams ( which were on sale at the time) to my Corolla.
The fitter used the OBD ? port and this caused problems, so I had to return for a fused point to be used.
When the UX arrives, Lexus Reading will be fitting front and rear cams.
Fifty years ago I thought nothing of fitting radioos, changing plugs, points etc. These days I don't dare touch anything.