keep_hope_alive
Premium Member
Acoustics Engineer
They used ignition for amp turn-on. Your problems are why I never recommend using ignition. Either replace a new head unit and get the GMOS class II data bus adapter, or replace the LOC with a David Navone Engineering model that includes an auto turn-on. The GM amp interface you got should include a remote turn-on output.
Noise problems like yours are the result of poor installation methods.
Noise problems like yours are the result of poor installation methods.