I added on of those automotive usb things to my psu's 12v line as a quick-and-dirty 5v power rail. Mounts in the back with existing screws, or you can mount it to the 2020 aluminum rail.
https://www.amazon.com/Outlet-Charge-Waterproof-Charger-Motorcycle/dp/B089SNPYFL/ref=sr_1_15?crid=2IYOAG0O06GWU&dib=eyJ2IjoiMSJ9.GDYMO1cCYJf8e9bOSGw3tTmONY7RAp4U1T59yruy0VL3LWBWT0Er82-b2IG-58P5gDRK6XwrC4FQhF01RPcU3yw0L916XgMcwnaYrnY3hwP0l7lcZ8NWwYA1ogTo71qzS0OOhE3yyyZHQl9vViUNCTVj7G1XzE4jCKKdFT5-my8vLSzJl9xIt3pL9_SeTz3p9proR8mT8AeweiKwaf7pibG7bIwITh_eh29uS7IXQcY.P0me-7GLcOfX3NRJ3jsuU2SF7MgFHPWO_9RO6KTd67I&dib_tag=se&keywords=12v+usb+socket&qid=1732758724&sprefix=12v+usb+socke%2Caps%2C285&sr=8-15