Cheaper and far less hassle power supply kit for dash cam is the Dongar Dashcam Power Adapter (Amazon) which plugs in to the rearview mirror. (Mirror must have the auto dimming capability, which is almost all nowadays). Attempting to install wiring from the under dash source and going up the A pillar is tricky if you don’t first disconnect battery for about 15 minutes to prevent possibility of accidental air bag deployment (resulting in several hundred dollars for replacement) during install!
i bought the Polarized Sun Visor and it's crap. While it does reduce the reflection from the dashboard on the windshield, you can see your own reflection in the screen, rendering it basically useless. Avoid.
The noco plug adapter is bullshit. What they dont say is youll need a separate power inverter installed. What the show installed is a battery charger. SMH