Question about Verge VGA300M Car Audio Amplifier

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No sound I installed a new stereo in my truck to an existing amp and now when I turn the volume up the speakers stop working, even the ones not hooked up to the amp.

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  • 30 Answers

You may have a blown speaker...many cd decks will shut off their audio circuits when a speaker is blown to protect from shorting out. Go to the back of the deck and try disconnecting speakers one by one. You will have to turn the deck off and back on each time. Hope this helps!

Posted on Aug 06, 2007

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Posted on Jan 02, 2017

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I had a 97 explorer came factory with a JBL system, and had a factory amplifier, I had to get rid of the factory amplifier and by pass it to get my new radio to work... my factory amp was in the very rear passenger under the plastic...... mine worked fine until I installed a new stereo (replaced stock one) and because my stereo didnt contain whatever it was to make the amplifier turn on, had to go bypass the amplifier and I unplugged everything I could find on it. Hope this may provide some clues if any

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Installing aftermarket stereo


Sounds like one of your connections are bad. Go through them again and be sure everything is secure. Also, definately check the fader and balance settings, could just be that the fader is set to front and balance is set to left. Also, why did you punch the first one?

Jul 20, 2013 | Audi Cars & Trucks

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Why have the speakers stopped working on my stereo. they were working fine until i had to brake sharply then thet all went off together. the stereo is only a month old & is still connected at rear...


Hello.. I am sorry to hear you are having a problem. If you have had your speakers changed out recently, it could be that one of the speaker wires or terminals are touching a metal part of the car. What happens is the aftermarket stereo detects this problem and it shuts down all of the outputs to keep from burning up. So all of your speakers going out is a good thing because your stereo protection is working as it should. You can cut all of the speaker wires loose behind the radio and hook them back up one at a time and when the radio cuts off, that will be the bad line. I am assuming of course that you dont have them hooked to an aftermarket amplifier. Even if you have not changed your speakers, it is still a protection circuit that will detect a bad speaker as well. Sudden jolts, braking, etc. can cause a bad speaker to fault. Hope this helped!! Good luck with your venture!

20 year car audio/video installer
Bay manager

Mar 14, 2011 | Car Audio & Video

1 Answer

If i wired my stereo amp up wrong could it cause the stereo to stop working just by attempting to turn the volume up


Define wrong...You need to hook the speakers up to the amp so there is a load for the amp to transfer the power to. If you have the polarity reversed it won't mess up anything but it will sound weird.

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check a button on the front labeled 'straight' or 'direct'

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Hi mate

this maybe caused by a positive and negitive wire touching somewere down the line!

just follow up your wires and check

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Kenwood kdc x915 cd player


Hi there JT,

An Amp makes existing sound louder. If you aren't getting sound now, there's a problem.

From your description, it sounds like your stereo is going through all the motions, it looks and acts like it is functioning. Just no sound.

If that is wrong, let me know.

When you turn it on, do you hear anything from the speakers? White noise, a click, anything, any indication that they are hooked to any kind of power supply?

Let's do the basics (easiest) first:
  • Mute is off
  • Balance and Fader centered
  • Volume up
  • CD in and playing
Still nothing? OK.
  • I need you to access the back of the stereo. (Sorry)
  • Yellow and red are power. Black is ground. The unit works so these are ok. Blue is to turn on a remote device like an amp. There may be an orange, ignore.
  • There are four sets of wire for the speakers. Colors are White, Gray, Purple and Green. One of each set is solid colored, the other has a stripe.
  • White and gray are front
  • Purple and green are back. Same page?
  • These are what your speakers should be hooked to. One set for each speaker. Are they?
  • Eyeball the connects, look for shorts, disconnects, etc.
  • Get a speaker and test it right there behind the stereo on one set after another. Anything? If so, you have a problem in the wiring not the stereo
That's enough for now. I'd hate to write a book and have you solve the thing in chapter one. Get back to me with the answers and results. Those results will decide the next course of action (Unless of course it's fixed by then, in which case let me know with a nice FixYa rating).

Mike

Jan 06, 2009 | Car Audio & Video

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go to standby hold m-log button tell menu comes on display press up on volume control tell amplifier comes on display pess left on volume control tell display says amp on. the built in amp on the stereo turns of and on to provide better sound quality to the pre-amp out puts

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1 Answer

Speakers dropping out & engine sounds


sounds like your amp is bad

remove the amp and hook your speakers directly to the radio if the problem stops
then the amp might be messed up

if you got another radio try the amp with that radio to "double" check that it is the amp

if the problem is still there with the speakers hooked to the radio then you need to fix or get another radio

Sep 03, 2007 | Pioneer DEH-P690UB CD Player

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