05-09 Interior and Audio Mods Enhancing Your Mustang's Interior and Sound System

Help! My Subs Won't Work!!!

Old Jan 2, 2008 | 05:50 PM
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Help! My Subs Won't Work!!!

Alright so I had 2 12'' Punch P2's Installed with a Rockford Fosgate Amp. During the summer I took my subs out of the trunk to fit some luggage in there. I disconnected them my pushing down on two little clips and i pulled the wires out. I kept the subs out of the car for a whole summer and then when i tried putting them back in, the would not work. Is there a blown fuse somewhere from running the amplifier to nothing? ANY help is appreciated.
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Old Jan 2, 2008 | 06:34 PM
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Originally Posted by officespace56
Alright so I had 2 12'' Punch P2's Installed with a Rockford Fosgate Amp. During the summer I took my subs out of the trunk to fit some luggage in there. I disconnected them my pushing down on two little clips and i pulled the wires out. I kept the subs out of the car for a whole summer and then when i tried putting them back in, the would not work. Is there a blown fuse somewhere from running the amplifier to nothing? ANY help is appreciated.
First check your fuses to the amps ,then also if you have distrobution boxs ,check the fuses on them too.LOL
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Old Jan 2, 2008 | 06:39 PM
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From: Football HOF, Canton OH
Then, check the fuse coming off of the battery.

Is the amp getting power? (light on, etc)

What did you do with the wires after you pulled them out. Were they just laying there where the exposed ends could touch each other?
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Old Jan 2, 2008 | 06:43 PM
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From: Eden Prairie, MN
Originally Posted by 05GT-O.C.D.
Then, check the fuse coming off of the battery.

Is the amp getting power? (light on, etc)

What did you do with the wires after you pulled them out. Were they just laying there where the exposed ends could touch each other?

No, I taped them seperated and then taped the seperate fuses to the back of the seat to keep the out of the way. When I turn the car on there is no power button that is lit up on the amp, which there should be.
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Old Jan 2, 2008 | 07:16 PM
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If the light on your amp isn't coming on when the car & radio are on, then you either:

1) have a blown fuse on the power wire feeding the amp

2) have a blown fuse inside of the amp

3) lost the trigger wire (remote wire) going to the amp

4) just overall have a bad amplifier, internal damage
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Old Jan 2, 2008 | 07:23 PM
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From: Football HOF, Canton OH
Sometimes you'll even find a fuse on the remote lead to the amp... one more to check.
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Old Jan 3, 2008 | 01:17 PM
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How do I check these things...as you can tell I am not too good with electronics.
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Old Jan 3, 2008 | 01:48 PM
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Originally Posted by officespace56
....and then taped the seperate fuses to the back of the seat to keep the out of the way.
What does that mean exactly?
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Old Jan 3, 2008 | 02:20 PM
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From: Football HOF, Canton OH
Originally Posted by officespace56
How do I check these things...as you can tell I am not too good with electronics.
A fuse is usually a clear tube with a small wire passing through it - similar to a lightbulb filament. If that wire is broken or burned, then the fuse is bad and needs replaced.
Other fuses like you may find on your amp are colored and have a number on the back - 15, 25, etc. Hold it up to the light and look through the thin colored portion of the fuse. There's a wire/ piece of metal in there that should go all the way through.
If any of the fuses are bad, then that's likely your problem... or at least part of it.
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Old Jan 3, 2008 | 09:30 PM
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From: Eden Prairie, MN
Originally Posted by adrenalin
What does that mean exactly?


There were 2 seperate wires that go into the back of the subs. I made sure they were seperated and I taped the to the back of the back seat, where my amp is mounted, so they would not touch eachother.
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Old Jan 3, 2008 | 09:35 PM
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From: Football HOF, Canton OH
Good fuse:



Bad Fuse:

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Old May 4, 2008 | 02:07 PM
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I finally got around to trying to fix this problem, the 40amp fuse in the amp was blown. So I went to BestBuy and they gave me a new 40amp fuse. I disconnected the battery, inserted the new fuse into the amp, connected the wires into the clips on the back of the sub woofer box, and then reconnected the battery. Turn the car on, and no power running to the amp. I check the new fuse that I just put in and it is blown! WHAT IS THE PROBLEM!!!???
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Old May 4, 2008 | 02:18 PM
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From: Football HOF, Canton OH
It blew for a reason. Something's shorting out. Is your power wire or remote wire making contact against any metal anywhere? All the insulation is in tact and there's no bare wire near any connections touching metal?
Try and determine if the fuse blows as soon as it's put into the amp, or only when the amp gets power, etc. If you were nearby I'd dig into it for you. If you can't figure it out, a local stereo shop shouldn't charge much to figure it out. Diag'ing that stuff is normally pretty easy, you just need to isolate the problems one step and one variable at a time. Good luck.
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Old May 6, 2008 | 09:28 AM
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also check your brake lights, 3rd brake light and tail lights to make sure they're all working. If one is out, that could be the source of the short
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Old May 6, 2008 | 02:00 PM
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I'm not so hot with electronics either, but when you disconnected your speakers, did you disconnect the amp from the power? Ol' guitar amp wisdom tells me that you never run an amp without a load (i.e. speaker). The speaker is part of the "system" and running it without a speaker can damage the transformer. A weak/damaged transformer can cause fuses to blow instantly. I'm not saying that this is your problem with your car amp, but it could be. I'd recommend taking it in to a pro, just so you don't make the situation worse.
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Old May 6, 2008 | 06:01 PM
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From: Eden Prairie, MN
That is the problem, I took my subs out not realizing power was still running to the amp. The fuse was blown in the amp, so I went and got a new fuse--disconnected the battery, pulled the old fuse, put the new one in, connected the subs, and re-connected the battery and when I turned the car on, the fuse blew again. I am taking it to BestBuy where I got it installed this Friday.
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Old May 7, 2008 | 06:11 AM
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Originally Posted by officespace56
That is the problem, I took my subs out not realizing power was still running to the amp. The fuse was blown in the amp, so I went and got a new fuse--disconnected the battery, pulled the old fuse, put the new one in, connected the subs, and re-connected the battery and when I turned the car on, the fuse blew again. I am taking it to BestBuy where I got it installed this Friday.
Probably either a short somewhere or maybe even a short inside a component (amp or whatever else you have after the fuse. It's fortunate that Best Buy did the install, so it's not your headache..
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Old May 9, 2008 | 06:32 PM
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From: Eden Prairie, MN
Got back from BestBuy... Fried amp, subs are done for
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Old May 9, 2008 | 07:06 PM
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From: Football HOF, Canton OH
Originally Posted by officespace56
Got back from BestBuy... Fried amp, subs are done for
Are they taking care of it for you? What caused the subs to go???
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Old May 10, 2008 | 01:22 PM
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From: Eden Prairie, MN
I bough the subs last year in October and there was only a one year warranty, which with my luck is up. The tech said that the amp was totally fried, and it may have been partially working, not sending enough power to work the subs properly which ruined them. He hooked but the amp and subs up to his own system seperately and said the amp was completely done and one of the 2 subs partially worked.
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