RAYSUN 1 Meter USB and 3.5mm AUX Extension Flush Mount - USB Dash Mount for Car Boat Motorcycle This handy mountable 3.5mm ( 1/8 ) and USB extension can be used to either provide a flush mounted on your dash or other surface; Designed for in car/Boat/Bike/Trailer use and is compatible with any car stereo Boat or Bike equipped with a 3.5mm/USB Aux Input; Works with vehicles with 3.5mm AUX or USB Input for extension/mount; Use an existing hole or cut a hole in your dashboard and clip in the socket to flush mount it to your vehicle's dash; It features a waterproof panel/dash mount with rubber cover and 1 meter extension cable;