12V DC USB Extension. Control your stereo in the cabin from your mobile device in the cockpit. USB 2.0 data inlet easily mounts at the dash with a prewired connecting cable that conveniently plugs directly into the USB on the stereo.. Features:. Protective dust cap with tether keeps out dust and spray. Five foot long cable. Mounts in 1-1/8" (29 mm) dia. hole. Specs:. Tether length: 5 ft. (1.52m). USB: 2.0. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.