This iDatalink HRN-DSP-GM3 harness connects a Rockford Fosgate digital signal processor (sold separately) to your Chevy or GMC vehicle with no factory amp, so you can add digital signal processing as well as an aftermarket amp without losing important GM features and functions. This T-harness connects to the factory radio’s harness, supplying audio and databus signals to the DSR1’s Maestro interface without any wire splicing.

• T-harness to add Rockford Fosgate DSR1 processor to select 2014-up Chevy and GMC vehicles
• retain fader control, tone, and other important features and functions