This amplifier kit is custom tuned for use in conjunction with your specially FLASHED Harley Infotainment radio Amplifier mounts to our custom made stainless steel 2-piece bracket system, to provide solid and secure mounting Custom made wiring harnesses are included, along with heavy gauge power/ground wires for the fused battery connection, all necessary mounting hardware and complete installation/operation instructions 100% plug-and-play for your convenience during the installation and to maintain the complete integrity of your Harley's internal wiring harness Amplifier measures 7-1/4ö X 4-3/4ô X 1-3/4ö. AMP 400W2C 14-20SG ULASTG