I just use the auxiliary 12V plug and go straight to the camera hiding the extra wire length under the passenger foot step.
It is very easy to hide the wires under the various molding panels without having to remove them.
I would recommend installing the dashcam under the rearview mirror instead of directly to the widshield,
to make it less noticeable but also to have it less exposed to the sun when parked.
See some examples of instalations:
Hey all, For the purposes that Tesla Cam/Sentry mode does, it's been doing well for me for the past year of owning this car. However, I do have a Blackvue DR490-2CH new in a box that I got for a good deal with, I gave it some thoughts on installing it on my car. Some of the people have...
teslamotorsclub.com