Harmony Audio GMC Specific Harnesses
Harmony Audio has manufactured specific harnesses for many vehicle makes and models. One of them are for the GMC brand. These Harmony Audio GMC Specific Harnesses are designed to plug directly into the existing factory speaker connector eliminating the guess work of matching up polarities while not affecting your GMC's warranty. Also, these harnesses come in pairs so you can install a pair of speakers. Grab your Harmony Audio GMC Specific Harnesses here at HiFiSoundConnection.com for the biggest savings online!