I connected my amp to my 12v power and ground it does not turn on,?

Question

i connected this same amplifier in another vehicle and it works, In the vehicle where the amplifier does not work i get a reading of 12 volts before i connect to the amplifier and once i connect it there is a reading of approximately 1volt. when i tested in the vehicle where the amplifier turned on it had a constant reading of 12volts even when connected to the amplifier. Is there any reason why it reduces from 12v to 1v

Answer 1

does your 12v supply have the current capacity for your amp?

That is one reason why you lose regulation.

Answer 2

When you have a voltage that drops with a load applied, that means there's a resistance somewhere in the power or ground line.  Make sure your ground wire is tightly secured to chassis metal.  Make sure you have a tight, clean connection at the battery.  Look at the connections at your fuse holder near the battery, checking for corrosion or charring.  Replace your fuse, even if it looks good; especially if you have an AGU (glass tube) type fuse.

If I had to guess, I'd say the problem lies in the fuse or fuse holder, but it could really be anywhere in the power line.

Answer 3

check the fuse on the amp. the back track wiring, make shure the ground is grounded(to a ground s***w in the engine compartment.) this is to insure there is a good ground. then check the blue remote wire. not blue/white.