Ive seen quite a few get tons of noise after somebody lost the ground on the amps and they tried to get a ground through the rcas and the radio
04 Silverado ECSB 4.8L, Blackbear Tune, K&N intake, MSD plug wires, NGK plugs, 22" Eagle Alloys on Nitto Rubber. D3, 400.4, 800.2, 2 10"P2 DVCs, RF Fanatic Q 6.5 components up front, Infinity plates in back. 791, with extras.
94 S-10 blazer on 17s, 55" ragtop, bags,4-link, 94 LT1 engine, lots of shaving and body mods, caddy tails, 4 12" P2s, 400.4, 1000.1bd, RF comps and coaxials rear and center. Work in progress