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landlover rob

New Member

• Oct 4, 2011

• #1

wired up stereo. works fine until key is turned to ign on. i,ve wired yellow to live.red to neg. there is a black wire but i,ve taped it off.

 

elsie

Well-Known Member

• Oct 4, 2011

• #2

you sure red is neg ?

 

Last edited: Oct 4, 2011

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SASBOB

New Member

• Oct 4, 2011

• #3

Yellow Permanent 12v, Red Ignition, Black to earth.

 

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landlover rob

New Member

• Oct 4, 2011

• #4

old radio req all 3 wires snap connected on block but new stereo only has liveand neg. earth is picked up by body,so i wired as i said leaving black blanked off. works fine until you switch ign on!!

 

Dr_evil

Banned

• Oct 4, 2011

• #5

landlover rob said:

wired up stereo. works fine until key is turned to ign on. i,ve wired yellow to live.red to neg. there is a black wire but i,ve taped it off.

Click to expand...

red to live, black to neg, yellow to ig I think and the casing earths it to the body

Think thats how I did my last one, but I'm not going to rip it out to check




But yeah, red and black are for power …….. well they were when I did my electrical course but that was circuit boards so might be different with this

 

Last edited: Oct 4, 2011

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SASBOB

New Member

• Oct 4, 2011

• #6

You said you had Red Yellow and Black?? Wire it any other way than what i said above and it won`t work!! Sometimes the antenna will supply an earth but usually a crap one so off you pop and do as you`re told!




Yellow Permanent 12v, Red Ignition, Black to earth. (blue to bits!)

 

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landlover rob

New Member

• Oct 4, 2011

• #7

armed with knowledge and 5amp fuses,i shall tackle it again tomorrow. thanks so much.

 

Ryder

Having a senior moment

• Oct 4, 2011

• #8

^^^^^^^^^^^^What they said^^^^^^^^ supply 12 volts to both sides of the circuit and you have no potential difference.... nothing to run the radio with!

 

Tom.JTC

Active Member

• Oct 4, 2011

• #9

Yellow should be permanent live, red is a switched live from ignition so that radio turns on with ignition, black is earth, though some radios will earth through other means such as the aerial and will not require the earth, mine does this.

If you don't have a switched live from ignition or aren't bothered about having to turn on radio manually all the time, you should connect one 12v feed to both the yellow and red wires on the radio side. Then the radio should power on manually regardless of ignition, and the ignition shouldn't affect it.