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Power and speaker connection

Cant tell which is power, earth, power antennah or acc.

Posted by hugh_sauers on

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Need more details...Is there no writing on the amp??? Usually the B+ is the power, the - is the negative and smallest hookup is the remote or power turn on. Hope that helps.

Posted on Mar 06, 2012

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94 frontier, cant get cd player to work. all the wires are right, but there is two more plugs that idk what they are for.

Make sure you have a good earth, no earth, no go. Just about any point on the metal car body or chassis will be good. Next use a circuit tester(it is just like a screw driver with a bulb and and wire running through it, it lights up if you have a powered circuit. They are cheap and simple a great test tool, cheaper than a multimeter.). Turn your ignition key to Acc., earth tool, probe wire, if light in tool lights, your wire is good for power tied to ignition. You can always run your power direct to the battery, but for a couple of reasons this is not advisable.

Lastly, check that speakers are wired correctly, your speakers have a + and - points that match the same speaker wires coming from the player.

The extra wires can be possibly for auto aerial, lights or whatever, if the player works without them, don't sweat it, just tape them up so they can't short out.
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I brought a rover mgzr and want to put radio in it but the wires in the loom have had the connectors cut off so i just got the speaker wires and the four wires to power the radio, I know which speaker...

My assumption would be black = earth, red/black = power, purple power antena? green white? start by getting a test lamp put the earth ********, turn ignition on & check all wires for power also test in acc position & off position in case 1 is memory (constant power) once you know which ones are power put the test light in the power & black to check the black is the earth. Once you have + & - & speakers it should work.
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Where can I get a driver for my MLi 691H speakers? I am running XP.

The humming noise could be a earth loop problem.
This is caused by having the speakers/sub woofer connected to one power point and the computer connected to a different power point.
To eliminate earth loop problems, connect both the speakers/sub woofer and computer to only one power point. Connect all your equipment to one power point using a power board.
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I LOST THE CONNECTIOS ON PIONNER DEH-2100 HOW I KNOW THE RIGHT CONNECTIONS

Red - Power - Connect to Acc on ignition or battery positive. Connected to Battery the unit will not power down when the ignition is switched off
Yellow - Memory back-up. Connect to battery positive
Black - Connect to vehicle earth or battery negative
Blue/white - Used to power up remote power amplifier or power antenna. Do not draw more than 300mA at 12V from this line
White + White/black - Front left channel
Grey + Grey/Black - Front right channel
Green + Green/black - Rear left channel
Violet + Violet/Black - Rear right channel
Use the wire with the black line in it for negative on any channel.
Do not earth any speaker wires.
RCA output jacks are used to send the output from the unit to an amplifier if you have one and cannot be used to power a speaker.
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Im not sure about power wire red black ground and yellow not sure?

Connect black to earth or battery negative.
Connect red to battery positive or the acc lead from your ignition switch. If connected to acc the unit will power down when the vehicle is switched off. If connected to battery positive it will remain on irrespective of ignition switch position.
Connect yellow to battery positive for memory power. The moment this lead loses power all the settings/memory on the unit will be lost.
Leave a comment if you require further assistance
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I have the Kd-S550, I need the wire connections . thanks

yellow goes to positive of the battery

red goes to the acc of the ignition(0volts whn car is off 12volts when car is on)

blue goes to a amplifier remote terminal if you have on if not the tape over the exposed copper

black goes to ground

the white of the speaker is that coming from the radio or from the car?
if it is from the radio then connect it to one side of the speaker

you need the cars radio wiring instructions and radio wiring intructions and double check each wire

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Getting buzzing sound from speaker but can here sound from them.

You could have an earth loop which causes a hum/buzzing sound.
Is your computer and powered speakers plugged into different mains?
Connecting amplifiers and speakers to different power sockets will create earth loop problems
This can be fixed by using a single power board connected to a single mains power socket, then connecting all the computer components and powered speakers into this one power board.
1helpful
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Wiring set up for installation

Yellow wire is 12volts constant
Red wire is 12volts acc when key is on
Black wire is ground or earth.
White and White/Black = left front speaker
Grey and Grey/Black=right front speaker
Green and Green/Black=left rear speaker
Purple and Purple/Black=right rear speaker
Blue wire is a trigger for power antenna or amplifier
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I am replacing the radio in a 2000 Malibu, and none of the wires for the harness are labeled. We just bought the car used and the plug has been removed. I am trying to find a diagram of the wiring for the...

Your probaly better of find the wires yourself its pretty simple.

First off you need to find the earth wire, its the wire with continuity to ground. Next you need to the wire that has power when the ignition is off, this is you constant/memory wire. Then find the wire that has power only when the ignition is on, this is acc. power wire.

Now to find which speaker wires go to which speaker. depending on how many speakers the car has there should be at least 4-8 wires for the speakers, two for each speaker.

all you have to do is get a nine volt battery an put power to the speaker wires and you should hear the speaker crackle, it wont hurt the speaker at all, if you cant get this to work just look at the wires on the speaker and match them to the ones in the dash.

hope this helps you out
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Stero wire diagram/ 1995 dodge Intepid

use a test light with ignition off when u find power connect it to yellow(memory) then on acc when u find power conect red connect black to earth blue is optional (power antenna) find the speaker wires colors at the back of each speaker and connect the two of the same color to each speaker striped wire + no stripe - hope this helps
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