Polestar 4 digital rearview mirror

[Beyond]

The one I use in my Subaru (tried a couple others before):

Spedal M9 E-Mirror Dash Cam Rearview Camera with Sony Starvis Lens

I bought this about 5 years ago so am sure that there are many even better options now. Most are natively 5 volt (so would work via USB) but many use a plug-in 12v to 5v adapter to be compatible with fossils. On the Subaru it was simple to run the wire to the rear but there are also many versions that use a wireless rear camera (usually Wi-Fi).

I used the backup (with parking lines) function on the Subaru. It works well but of course isn't needed on Teslas.

Here's another option that might work for some. It has a large battery, solar charging and a USB C connection. Could also attach a powerbank if you like. One guy even uses it for a front camera on his Tesla:

https://www.amazon.com/RVInWest-Wireless-Installion-Waterproof-Rechargable/dp/B0CKVF29Z4/

There's literally scores of options out there to fit various use cases.

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