Question about Car Speakers & Subwoofers

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I have tried to wire a sub and amp to my kdc-w311 head unit when connecting the power atenna the head unit stoped and displayed PROTECTION wat do i do?

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I would try and make sure that the power antenna is grounded like it should be!

Posted on Dec 07, 2008

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Well i was driving one day and my subs just whent out so i bought brand new wires and hooked everything up but the power protector light turns red whenever uu turn it up past volume 10 i really do not know...


It sounds like your amp is going into protection. I know it's frustrating, but this is actually a good thing. If you subs you have are drawing too much power and the amp can't keep up, it will shut off instead of melting the board. Usually, the protection mode only last a few seconds. The user normally turns the music down that the protection shuts off and the music plays again. I recommend looking at a larger amp for your subs, if you are going to play them that hard.

Aug 14, 2011 | Car Speakers & Subwoofers

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How to i install a Pioneer DEH-1250 to a Jensen 5500?I got these as a gift and its like confusing me.Please help me out and send me a diagram on the input wiring from the Pioneer player to the Jensen 5500-...


Hi, what you want to do is just connect the speaker wires from the head unit straight across to the pre-amp inputs of the amp. If you have a sub, also connect the pre-amp outputs of the head unit to the 2 sub inputs of the amp. Connect the blue wire of the head unit to the turn-on terminal of the amp and connect power wires to both units. May I ask what speakers are you using?

Aug 14, 2011 | Jensen Car Speakers & Subwoofers

1 Answer

Trying to install subs


If there is no red and black colored input wire connectors on the subs then it doesn't matter.Positive and negative does not really effect speakers and subs since it is DC anyways.

Jul 25, 2010 | Lanzar OPTI1533D Car Subwoofer

1 Answer

Hi, I'm trying to install a sub and amp in my 2006 ram w/OE head unit. What wires do I have to tap into to get speaker output? Thanks, Chris


You'll need power from the battery to your amp (you may be able to find a spare one at the head unit), and, using suitably thick wire, connect those to the 12vDC input of the amp.

If the amplifier accepts speaker level inputs, you can connect the amplifier input to the head unit output (maybe use the rear speaker output). At the other end of the amp, connect your subwoofer. If there's only one, use the amp bridged (more power). If you're using two, and your amp has 2 channels, use one channel per subwoofer. When you power all this up, turn the volume up from 0 slowly - if anything sounds wrong, turn it back down and switch it all off. Check all your wires and start again.

Jan 14, 2010 | Kenwood Car Speakers & Subwoofers

1 Answer

I have a fusion sub and amp and have no instructions on how to wire this can somone please help ive got green wires red wire and a small thin blue wire


Hello nicole_murra,

The green wires are for signal input to the included amp and should be connected to a pair of RCA preamp outputs on your head unit. The thin blue wire connects from "remote" on the amp to a switched 12V output on the head unit (usually blue or blue/white). The red wire is for power and goes through the fuse to positive battery. You also need to connect the amp terminal marked "ground" to the metallic chassis of your vehicle, within a distance of about 1/2 meter or less. There's usually a short piece of wire with black insulation included in most amp wiring kits. If your Fusion sub did not come with such a wire, you can use any wire that is the same gauge (or bigger) than the red power wire.

Hope this helps.

Sep 08, 2009 | Fusion FEW12PK Car Subwoofer

1 Answer

I just bought a Kenwood KDC-X493 and installed it in my Alero. I hooked it up to an amp and a sub and it only works with the tuner and not and Ipod or an auxilary hookup or even a cd. what is wrong.


Hello jarhead455,

It sounds like the remote terminal on your sub amp is not properly connected. The KDC-X493 has a wire to turn on a remote amp (Blue/White) and a wire for a power antenna (Blue). If the blue wire is connected to the amp remote terminal, the amp will only turn on when the tuner source on the receiver is selected. If the correct wire is connected, the problem is most likely in the receiver.

If the receiver is at fault, not under warranty, and you still want to use it, you can connect any fused 12V+ to the amp remote terminal. A simple way is to jumper a short wire between the power and remote terminals. Wire the jumper through a SPST switch conveniently located so that you can turn it ON and OFF as desired.

Hope this helps.

Jul 02, 2009 | Sony Car Speakers & Subwoofers

1 Answer

The car is all wired the power is good the ground is good the amp work and i have the sub turned on with the nob but the sub doesn't work it has a 800w rms amp and two 400w rms subs mtx 7500


You could have the subs wired in the wrong ohm. It might be turning off the amp and check to make sure that you rca cables from the head unit to the amp are connected right.

Jun 21, 2009 | Car Speakers & Subwoofers

1 Answer

I just bought a KDC MP-235 to put in a 95 camaro with bose amplified speakers. I ordered a amplifier intergration component to reduce the output of the 50 watt per channel head unit as to have better...


Hi,

Yes, the Kenwood KDC MP-235 has two (2) line level outputs (RCA types red & white). However, these outputs internally passed through an electronic crossover/filter making them appropriate for subwoofer amps only.

If your unit is an MP-235CR, then the same outputs would be for the rear amp (not subs) and are full range (unfiltered).

If indeed your unit is an MP-235 and if I may make a suggestion, still connect the Kenwood to four (4) speakers. It would not be technically correct to leave the internal amps operating with no load (speakers) connected. Additionally, you would be getting 200 watts (4 X 50) more to your system (since it is already there).

If your Bose amp & speaker are subs, then no issue, however if the Bose is for a full range of speakers, then only the woofer part would be working efficiently.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 15, 2008 | Kenwood Car Speakers & Subwoofers

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