Easy to install, just mark the hole and drilling, insert the outlet, screw in the screws, and connect black wire to negative pole, red wire to positive pole. Besides the blue light of the 12 volt automotive usb outlet is always on when power is on, easy to find in dark.
eBay
1 x USB 3.0 A Female to Right Angled Micro B Male Extension Panel Mount Cable. Fine copper braid covered with flexible PVC jacket, provide stable signal. USB 3.0 female to Micro B male extension cable with panel mount and screws for secure installation.
eBay
USB A 3.0 Male to USB C 3.1 Male with Dual Locking Screws. With its secure locking feature, you can trust that your phones, tablets, PCs, and other devices will stay connected and powered. Features 2 locking screws on one end and 2 screws on the other end for secure and stable connections.
eBay
Cigarette socket. Dual usb socket. 12v / 24v. Flip down covers.
eBay
Diy Electronics: Raspberry Pi Projects, 3d Printer Wiring, and Retro Gaming Consoles. Pc Builds: Connect Front Panel Usb Ports to Motherboard Headers. Wire Length: 30cm, 50cm，100cm，150cm，. Optimized for Low Impedance and High-speed Data Transfer.
eBay
Car Dash Flush Mount AUX Typr C USB Port Panel Extension Cable Adapter 150CM. Line length：150cm. Flush mount the socket to your dashboard or other surface. 1 x AUX/USB/Type CExtension Cable Adapter. Designed for in car but can be used for any application, such as bike, marine, motor.
eBay
1 Dual USB port socket. Colour: Black. 1 set screw. USB output current: 3.1A. TypeDual USB port socket. ConnectivityWired/Phone Antenna Port. Maximum power: 16W. Hope to have more chances to serve you!
eBay
The square USB 3.0 car mount flush cable is thick and durable, in normal cases,use an existing hole or cut a hole on your dashboard and clip in the socket to flush mount it to your vehicle's,boat’s and motors.
eBay