Zelda3
Regular Member
I just finished the installation of a Garmin DriveSmart 50 WE LMT-D today. It is fitted to the centre console with Brodit brackets so no drilling is required. And it is wired to the radio fuse so it powers up in ignition key 1.
It has bluetooth hands-free telepone (required by law in Sweden) and receives text messages. It can also be connected to Garmin wireless backup camera.
I have a Garmin Camper 660LMT with a 6" screen in my Land Rover Defender. This one is connected to a backup camera but I do not think this necessary in the Z3.
Also i my sailboat I have a Garmin plotter and a Garmin hand-held gps as a back-up.
In case you are interested, I can take a picture of the gps installation tomorrow.
Here are a couple of pictures from the installation.

Don't ask me how. An hour of trial and error 