Question about Rockford Fosgate Punch P4004 Car Audio Amplifier

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In thermal mode

I had it running fine, i hit a bump and the box and amp werent mounted so the ground wire came off, i go take off the negative terminal for the battery and reconnect the ground, i took off the rca's before installing the ground, but i left the power and rem, what can I do??

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If i understand correctly its possible that the amp shorted out during the bump...check all connections and fuses, if all is fine then the amp needs repaired.....watch out for those bumps next time.

Posted on Nov 12, 2007

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Car runs fine but when i hit bad bumps the RPM drops scanner reads no communication with ecm and pcm receiving info from bcm 2007 impala 3.5 flexi fuel


check for bad battery grounds , loose grounds
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from your description it is something loose in the circuit that is moving with the bumps that is breaking contact

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Check connectors and wiring, probably vibrations are interrupring some bad connector.

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I HAVE A 2001 AURORA. SEEMS TO HAVE A GROUND PROBLEM SOMEWHERE. HIT A BUMP IN THE ROAD ALL LIGHTS WENT OUT. LOST POWER STEERING THEN THE CAR QUIT. STARTED LATER AND EVERY THING IS FINE. HAVE NOTICED...


clean your battery terminals-lift the rear seat, the battery is under the passenger seat, disconnect the terminals (both), use a wire brush and get the cable lugs shiny on the inside, where they clamp onto the battery terminals. Then clean the battery posts, hoop up the positive cable first, then the negative cable-while you are there, look at the negative cable and make sure it other end is tight and not rusted where it connects to the body.

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1 Answer

WHY DID MY OIL PRESSURE GAUGE,TACH, GAS GAUGE, AND AMP GAUGE STOP WORKING AT THE SAME TIME"?


I would check the chassis ground. It is a wire coming from negative terminal of battery to the body. The motor is isolated by rubber motor mounts/transmission mounts. I've seen a lot of vehicles with braided ground strap break in two. You can undo a fender bolt under hood and ground to negative post with wire just to check. Hope this helps.

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1 Answer

I have a 1600 watt amplifier wiring kit w/0.5f digital stiff cap and it has no instructions how can i get some?


Place the amp where you are going to permanently mount it. The cap. should be as close to the amp as possible. Run the positive cable from the pos. terminal of the battery to the pos. terminal on the cap. Then from the cap's pos.terminal run a cable to the pos. terminal on the amp. Dont install the fuse into the fuse holder just yet. Make sure you place the fuse holder at most 10 inches or closer to the battery. Find a good ground point to run the negative cable to the cap. make this one as short as posible, use any good solid metal part of the car's chassis or bolt that runs into the body. Run another ground cable from that piont or nearby point to the amp's negative terminal. run the rca cables from the back of the head unit outputs to the inputs on the amp. Then run the small gauge remote wire from the amp remote output from the head unit to the remote turn-on terminal on the amp. run your speaker wires from your amp to your speakers. Install the fuse, it will spark a tiny bit when installed, its normal thats just your stiff cap and the caps inside your apm charging. Usually you charge the cap before you introduce it into the system to prevent that spark but a cap that size doesn't create a huge spark. good luck

Nov 18, 2009 | Car Audio & Video

3 Answers

I need help installing a 4 Channel Power Acoustik Amplifier to Two Pioneer Subwoofers. I hooked up the power wire to the positive battery terminal in the engine compartment. I then cut the power wire and...


You are doing right on what you described. I really like to work with a clearly described what involved in an issue.

Now we have to use a Voltmeter to check if there is power to the amplifier. If there is power to the amplifier terminal, then the problem is at the amplifier, not the connection. Let check it out:

1- Turn on your Kenwood radio, make sure to hear sound from your regular speakers.
2- Turn remote control knob to the mid level between min and max.
3- Measure the blue wire where you spliced to ground to see if you have 12V, if it is not then the problem is right there.
4- Measure the Red wire power from the Amplifier to ground ( the bolt that you connect the negative power to see if there is 12V, if not trace back to the Fuse that you inserted between the positive terminal of the battery and the wire going through the firewall to correct it.
5- If you have 12V at step 3 and 4, then you have a defect unit, return it to the manufacturer for a replacement.

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2 Answers

03 z71 tahoe wiggs out when u hit a bump abs light brake light service brake system in dash comes on also reduced engine power comes on it shuts of but starts back on its on and door locks cycle but runs...


I have had the EXACT same problem with my 03 Chevy Tahoe!!! I have yet to find out the solution!? I cleaned all my grounds and changed my rear speed sensor along with bench tested my alternator! Have you found the problem? I would be very grateful if you could hit me back with an answer!! Thanks

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1 Answer

Amplifier turns on but not the subwoofer?


Hello thedj3214,

You can find the color codes for a 1999 Buick Regal here. There is no dedicated amp remote wire. Neither is there a power antenna wire.

You could use the 12V "switched lead (yellow) from the radio or any switched 12V lead directly from the vehicle fuse box. I'd wire it through a dash mounted toggle switch so as to be able to turn the amp on and off manually.

The Sony 2150GSX is a 2-channel amp with the speaker terminals on either side. You do not want to ground the subwoofer itself, only the ground terminal should be connected to bare metal on the vehicle chassis or body as close to the amp as possible. The ground wire does not need to be run to the negative battery terminal.

A ground on one of the speaker leads will probably cause the amp not to power up. A ground on a speaker wire usually activates the amps protection circuit, causing it to not operate until the fault is corrected.

Hope this helps.

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1 Answer

CAN I POWER MY FISH FINDER GOING DIRECTLY TO THE


Yes you can. Basically the red wire goes to the fuse box connection. The fuse box should then be wired into the positive battery terminal. The black wire is the negative ground wire and needs to go directly back to your negative battery terminal or to a common negative buss bar.

Jun 15, 2009 | Humminbird Fishfinder 565 With Transom...

1 Answer

I cant hook up my amp


Hello cesar199064,

These are the steps you required to install your amp and subs:

1) Purchase an amp wiring kit with 2 or 1/0 gauge power and ground wires.
2) Decide on a location to mount the amp where it will get proper airflow and will not interfere with operation of the vehicle. Closer to the battery is better. Decide on the location and install the sub enclosures.
3) Locate a place on the metal body of the vehicle within about 3" of your amp for the ground. Connect the ground wire to the amp ground terminal and to BARE METAL on the vehicle.
4) Run power wire from battery positive (+) using one of the amp kit ring terminals through a 100A fuseholder to the amp positive terminal. DO NOT install the fuse yet.
5) Run a "remote" wire from the remote turn-on lead (usually blue or blue/white) of your dash mounted head unit to the amp turn-on terminal. Run a set of RCA cables from the preamp or subwoofer outputs on the head unit to the amp inputs.
6) Run speaker wire, preferably at least 12-gauge, from the amp output terminals to your subs.
7) Check all of your wiring. Make sure that no insulation was damaged or peeled off during the running process. Make sure there are no loose strands touching adjacent terminals or bare metal.
8) Use a multimeter set to read "ohms" and test from the negative battery post to the amp ground terminal. You should read "0".
9) Install the fuse.
10) Turn on your head unit and listen to those big Kickers thump.
11) Adjust the amp settings according to your manual.

The best place I've found for in depth information on audio installs is The Install Doctor. You'll find step-by-step procedures, color photos, wiring details, and even the tools required. I recommend that you begin with the "tech docs" link and read through some of the PDF documents.

Hope this helps.

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