Mobilistics™ 3.5/USB indash flush mount connection with 30" cable extensions to your amp or stereo input. Requires approximately 3/4" x 1 1/4" cutout. Snaps into cut out out or exsisting recessed opening on some newer vehicle. The opening can recess 3/8" for flush mount. Trim panel size is 1 3/8" x 1". Waterproof outside snap on trim cover. Great for in dash mounting in any type vehicle, boat, golf cart, tractors etc.