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Mercedes w211 radio head unit is not working .live and earth wires to unit are fine .will i need to replace the head unit.

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Posted on Jan 02, 2017

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SOURCE: NG Pajero radio cassette wiring

what colours are the eart and negative wires on aclarion pu/2294aradio please

Posted on May 16, 2008

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SOURCE: 1979 Mercedes Benz 300D- Turn signals, windows, radio...quit

Barrel fuses used to be made of aluminum and corrode on the copper contacts. Pull fuses and replace. 10-15 dollars now will help get rid of electrical gremlins.

Posted on Jul 28, 2009

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SOURCE: my amp is not working! i have a live from battery

Do you have the remote turn-on lead hooked up?

There should be 3 wires on the power side of the amplifier.

Ground - to the car chassis
Power - to the car battery
Remote - to the remote turn on lead from the head unit. (this emits a 12V signal to a relay inside the amplifier for it to turn on when the radio does)

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Posted on Sep 05, 2009

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SOURCE: oil level gauge not working. replaced sender unit.

check if sender fit your car, if good, maybe the problem is oil pump , dirty oil filter, poor quality engine oil

Posted on Sep 11, 2009

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SOURCE: how to wire a digital room thermostat

The switched live will be the Live on the original....Live being "Hot" that's the wire you want to switch on and off

Posted on Oct 25, 2009

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There should be 2 blocks that come from the car. One for power and one for speakers. The power is red, the earth is black, the yellow is usually a perminantley live wire, the orange is an illumination wire and the blue is a remote wire (which recognises when the key is turned) the wires from your radio needs to be lined up with the correct corresponding wires. If they are connected correctly change the fuse at the back of the radio head unit and the fuse for the car radio. If you have done all the steps above and the radio still doesn't work then you can use a voltmeter to test if power is coming down the wires. If there is and the radio is still not working then you have a faulty head unit. If it has been incorrectly fitted previously you may have blow the amp inside the head unit, an easy way to tell if this has happened is to smell the back of the radio, it will stink so you will know its burnt out

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you will need to run a male phono to phono lead from the head unit to the amp, You will also need to run a fused live 12v from your battery to the amp live input (red wire) and a remote (usally blue) from your head unit to the amp (make sure you run the live ond remote on opisite sides of the car to the phonos as they can interfere with each other).
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How do I remove and replace the radio in a 1993 Mercedes Benz 300SE? I want to replace the radio unit with a unit containing CD player.

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Jun 04, 2010 | 1993 Mercedes-Benz Mercedes Benz 300 Class

2 Answers

NG Pajero radio cassette wiring

the green/white wire is the earth - the earth to the chassis gave no resistance when tested with the multimeter to the car chassis. So it was a pretty good bet that the green/white wire was the earth as suspected. The radio cassette works a treat. Yipee!

Apr 18, 2008 | Car Audio & Video

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