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My amp is not working! i have a live from battery and a good earth,but still nothing,does it need to be earthed to back of head unit?

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Do you have the remote turn-on lead hooked up?

There should be 3 wires on the power side of the amplifier.

Ground - to the car chassis
Power - to the car battery
Remote - to the remote turn on lead from the head unit. (this emits a 12V signal to a relay inside the amplifier for it to turn on when the radio does)

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Posted on Sep 05, 2009

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I didn't hear you mention a remote wire? If you have a good positive and ground then should be good to go. The remote wire tells the amp to turn on/off with the ignition or with the radio depending on where you wire it to. Most times the remote wire on your aftermarket radio (small thin wire usually blue) is connected to the remote line of your amp. There is none on a factory radio. If you have a factory radio you can run the remote from your amp to the radio fuse on your car and it will turn on/off with the ignition of your car. You can test the amp first by runinng the power wire on the amp directly to the remote terminal, it should light up. Do not leave it this way as the amp will stay on and will drain your battery..

Posted on Sep 06, 2009

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Yeah I had the same problem, I hooked it all up right but the protect light wouldnt go off, I kept wondering why. The battery was to week so the green power light wouldnt go on.
But my problem is that I have this buzzing or humming noise to whatever I hooked up my amplifier up to? How do I get the buzzng noise to stop?

Posted on Feb 21, 2010

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There is no power to the radio it does nothing will not light up.

Check the fuse on the back of the stereo, usually 25amp blade fuse, and there could be another near the other end of the power lead. If that doesn't work, run a new earth lead (black on the back of the stereo, to any earthed metal), power lead (yellow, to a good positive terminal or to the battery), accessory lead (red, to the ignition switch or a fuse associated with it). If neither of these work then your head unit will more than likely be dead or have a security feature stopping it from powering up.

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How to wire sreaker system

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I really have two questons. the first is that the light of the panel on my stereo is always on. whats that from? the other is that i have a sound system in my car. i know its the head unit. when ever my...

Hi There. This may be line noise.

Check that your head unit and amplifiers etc are all earthed to the same earth. ie: If connected to the battery earth then connect all earths to battery, or if connected to body earth then connect all to body earth.

Another thing is to check that your RCA Cable or interconnects are not running with your power wires. This can induce line noise.

If all is correct then get yourself a noise suppressor or a ground loop isolator.

Hope this helps

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