Aerpro USB retention adapters allow the factory OEM USB socket in a vehicle to be retained when installing an aftermarket headunit. The adapter simply connects to the rear USB input on the aftermarket headunit and connects to the factory plug in the vehicle. APIZUSB1 is a USB retention adapter suitable for a selected Isuzu D-Max and MU-X vehicles that are equipped with an OEM Clarion or Fujitsu 10 headunit.