Hi guys

 

I am trying to fit a new car radio that I bought (Pioneer) and it requires a 12V supply permanent from the battery. I have to hook this up to the yellow cable. But my permanent supply behind the radio is only showing 7.5V. Any idea why this might be? As a solution, could I perhaps hook the radio to another power source - and where would I find the alternative power source? Do I need to run another cable with a fuse to somewhere or...?
 

Thanks in advance

Adam Lord

 

Skoda Fabia 16V 1,4 2006
Skanderborg, Denmark

 

What colour(s) is the wire you're measuring 7.5V on?

What colour(s) is the wire you're measuring 7.5V on?

Clue's in the title?

 

@ OP - is this with ignition on or off? What do you get on the red wire?

Clue's in the title?

 

@ OP - is this with ignition on or off? What do you get on the red wire?

The wiring diagram I'm looking at shows the permanent 12V wires to the radio as black/blue, coming from fuse 45. So I'm not sure the question I asked isn't relevant?

my bad - i mis understood

 

I assumed (makes an ass out ouf u and me ) that he was talking about the wiring on the radio being yellow. If i remember red/yellow is the failrly standard iso radio connection colours

I think that the yellow wire from the car loom is only an accessory live wire so gives enough power to remember settings without a massive drain. The red wire on the car loom is what supplies the 12v constant.

http://www.briskoda.net/forums/topic/196288-oem-wiring-loom-colours-pins-for-stereos/

 

According to the link, a yellow wire in the main "power" connector would be because there's already an adapter/extender in the loom. OEM wouldn't have a yellow wire.

 

J.

Hi all,

 

Thanks for your responses. And sorry that I forgot about this post.  I still have not worked out why my yellow (yes on the loom) / red (OEM) is only giving 7.5V instead of 12V.

 

But I have found a workaround. The glove box light has a 12V permanent supply. Cut a bit of the insulation off the back of it and made my own cable connection to the radio loom.

 

Problem solved!