We have just bought and installed an Ape-man dashcam in our 500L. With discount voucher it was less than £30 installed. We are very happy up to now, and will put one into Coupe, when a few jobs are complete.
We have hidden cables but connected to cigarette lighter.
All you need is in the box, except a micro SD card.
Neighbour has one as well, and he's quite fussy!
May not be as good as a top of the range Nextbase, but does the safety job very well.