HiFi Harness is used to directly replace 7ch OEM amps directly with balanced-inputs aftermarket amps only. Unplug HiFi OEM amp, plug harness to OEM amp harness, and wire your aftermarket 8ch balanced-inputs amps to harness. Use “Y” RCA adapters (not included) for multiple balanced-inputs amps.
Aftermarket amp must be wired directly to battery of vehicle. Aftermarket amp power cables not included.
Warranty of harness is one year from purchase date. Harness is designed for experienced DIYers. Professional install suggested. Support limited to harness install; no support given to aftermarket parts not sold with harness kit.