All - $350 for everything listed here.
Selling my used, but in great working condition 2-channel (front and rear cam) Blackvue Dash Cam (DR750S-2CH retails for $370 on Amazon before taxes). This came out of my Model S so the connector is already pre-wired (pictured) to connect to the wiring available on the S (please validate this yourself).
This will also come with a 128GB high endurance Blackvue SD card (retails for $135). What is missing is the coaxial cable to connect the front and rear cam ($22 on Amazon and you can pick if you need a particular length).
I am willing to split up the cam from the SD card. Depends on the interest. I also cannot currently locate the original box (I know I have it somewhere but buried in garage somewhere).