In a different problem I have now with my system, I ended up obtaining the harness with the RCA's for my aftermarket radio so I do not have to use a LOC anymore thankfully, after hooking that up, I still can not get anything to work, fuses are good, I am not sure where to begin. Is there a way I can check to see if my amp has power or is on? I can not figure it out, I hooked it up the same way I did my last two systems and still can not get anything to work.