Question about Reality VRA2.0 Car Audio Amplifier

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Reality vra2.0 works fine but doesnt work fine

Ok wierd issue im running 0 guage wire to a .5k cap then to the vra2.0 with 2 fuses inline just incase and one ground all connections are totally solid/clean... battery voltage is perfect... im running a single 4ohm sub bridged... the issue is the bridged mode seemed to have stopped working but after alot of trial and error come to find out the first channel works i figured blown mosfet in second channel... but if i hook it up to single channel then start the stereo and them switched to bridged with stereo still on it kicks right in and works fine i really dont feel like doing this everytime i start my car... it seems really confusing to me and i dont think tech support could grasp what im describing..... PLEASE HELP ME

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  • Anonymous Sep 07, 2008

    me urge el diagrama para el vra 2.0 alguien lo podria postear por favor

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The built in cross over sounds fried.

Posted on Mar 26, 2007

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1 Answer

I have a 900 watt amp wired to 2 mtx 12's. it powers up fine but when the bass hits the power light fades away


Try using a 4ga ground cable. Ground it to the frame of your car. And use a 2ga and a inline fuse 100amp run this to your battery. And you need a cap. A 1000 watt will work good. Hope this helps....

Feb 08, 2014 | Alpine MRP-M450 Car Audio Amplifier

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My temperature gauge doesnt work


Easy test ground the sensor wire to ground(intake manifold) the guage should max out if not check for power on the back of the instrument panel at the guage if you have power on one side ground the other side if it works .If grounding it at the guage makes it work bad connection at the sensor or broken wire

Feb 01, 2014 | 1995 Jeep Grand Cherokee

1 Answer

My audiopipe amp went into protect mode randomly. even though i have to prevent fuses on my power wire


Ok, for starters you need to clarify if you are saying you have "two" fuses on your power wire. That's what I get from your statement. My question would be why? As long as you place the initial fuse within 12 inches of the battery, you're cool. The purpose is to stop the flow of power in the event of a spike so that your power wire doesn't fry and cause a fire under your vehicle carpet. Second, your amplifier should have fuses that trip when this occurs too. If this has been occuring since you installed the amp, you need to recheck all your wiring (I recommend removing the extra inline fuse). Two things trigger an amps safety mode. 1- an amperage fluctuation or overload. It will sense when there is to high or too low of an amperage flow. Too much fluctuation can damage internal components. 2- Your amp is malfunctioning. If you have an internal short, this could occur. (really it's tied to the first one because it is sensing that the short is allowing a full flow of power at the short, thus causing a fluctuation). Start with the ground wire. Most amperage problems happen because of a poor ground. Think of power like water. If you have a good flow coming in, but poor flow going out, it gets kinda....backed up. This causes a fluctuation of the amperage since the electrons cannot flow properly. Setting off the protection. The other thing to thing about is the correct guage of wire. If you have too small guage wire, the amperage will dip low during heavy usage, causing the other extreme of the fluctuation.

Check what you have. If you are running a load of 50-65 amp (look at the fuses on your amps and add them up), then 4 guage is good from 13-22 feet. If you are running any higher than that, you will need 2 or 0 guage wire. You will also need to make sure to have a fuse slightly higher that the amperage draw you are expecting. As always, make sure your power and ground wire match. I have seen alot of kits made with smaller guage ground wire. They work of the premise that the shorter distance produces less resistance, thus requiring smaller guage wire. I say why risk it. Always use a multimeter when checking for proper ground placement. Also, if you are going to use aluminum or tinned wire (trust me, it's out there), you will need to increase the guage of the wire.

Happy hunting

Aug 14, 2011 | Audiopipe Car Audio & Video

1 Answer

Ok, so I have a radiator fan issue, working back from the fan I can jump the wires and they operate fine, checking the relays with an ohm meter the relays appear to be in proper working order, now checking...


The fan works from a temp sensor on the engine. You did not give model so its just a shot. You need to check the temp sensor. Now it can also be a blown fuse, you said they appear to be ok, pull any and visual check to see if blown. The check engine light can be just coming on when the engine temps gets to high. The Chevy system uses 2 sensors.

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Is there a hidden 'inline' fuse on a 04/6 cy


There are seperate "trailer" fuses in the fuse box in the engine compartment. Separate fuses for trailer left, right and running lights.

Check all fuses, I had the same issue before.

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1 Answer

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The cable should not cause the problem unless it is shorting out somewhere on the remote or positive cable. I would use a larger gauge wire first as this is the cheaper way to go, and if the same problem occurs you are having a short in the sub or box causing the protection mode. You will have to back trace to find possible cross connections.

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94 chevy 5.7 2 wheel drive


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1 Answer

Radio fuse


did it work when they or you hooked it up ? if it did work when did it stop working there will be a red wire comming out of the new radio there will be a plastic inline fuse holder in line usually you push white plastic holder towards each other and turn one way or the other and it shoul open and reveal the fuse check the fuse with a multi meter or visually inspect the fuse replace with the same amperage and try stereo. if it doesnt work check the black wire under the dash it will be a ground it needs to be attached to the steel frame with a screw holding solidly if there is a ground and the fuse is good inline then see where the red wire from the radio goes trace it to the source if the source is fusebox check the fuse that its attached to or if its attached to another wire to get the power 12 volts dc . take a close peek if power and ground is good to the radio return it or thake it back in the car to let them see that it doesnt work ok good luck and im sorry to hear that your new music box stopped working im shure you will get it working again talk soon

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4 Answers

Power supply


That depends. It could just be the guage of wire you're using. If using an 8 guage, try a 4. If the amp is running and your headlights dim, then chances are you need a cap instead.

Sep 08, 2006 | Kenwood KAC-9102D Car Audio Amplifier

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