This blog will address this:
- How to connect an aftermarket amplifier to your GMC Sierra/Chevy Silverado
The GMC Sierra/ Chevy Silverado kit does not come with RCA outputs for an aftermarket subwoofer. The RCA’s that come with the kit are for video outputs that will allow you to connect aftermarket cameras.
It is still possible to connect an aftermarket amplifier to our GMC Sierra/Chevy Silverado kit. You will need to purchase an LOC (Line Output Converter) that will convert speaker wires to RCA.