STERLING RADIO HARNESS - bigrigstereo Sterling Radio Harness 1998 to current year from Big Rig Stereo. Purchase a radio and the harness is free. When you purchase a radio from BRS not only do you get a great semi truck radio you get a FREE professionally wired truck radio harness to connect it to your truck as well as a set of radio removal keys to remove that old radio. Car Stereo Wiring Harness - scosche Our stereo wiring harness kits are the best in the industry and ensure an easy and clean car stereo installation. Our extensive car stereo wiring harness collection ensures that you will find the exact harness needed for you car.