The Rockford Fosgate PAUX USB and auxiliary extension allows you to easily mount a USB and auxiliary extension cable in the cigarette lighter hole of your dash, glove box, console, or anywhere you else you may like to mount it.
The front of this device has a female USB connector and a female 3.5mm headphone jack connector. The back of it has a male USB cable that can plug into the back of your USA-630, Slidebar, or Secretaudio radio.
In addition to the USB connection, this device has RCA cables to plug into the auxiliary input that is on the back of all Custom Autosound radios. Don't mess with cables dangling under your dash or having to reach behind the radio every time you want to add music to your USB drive.