Plugs Into Car Harness At Radio Location; Incl. Additional 9 Pin To Activate Factory Amplifier
Plugs Into Output Of OEM Amplifier Harness; 21 Pin; 72 in. Long; Color Coded Leads
Browse our selection of quality audio amplifier wiring harness parts designed specifically for your GMC Sierra 2500 HD. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · Denali · SL · SLE · SLT
Crew Cab Pickup · Extended Cab Pickup · Standard Cab Pickup
V8 6.0L · V8 6.6L · V8 8.1L
Automatic · Manual
