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Car radio/cd player replacement, wiring problem

Hi, i am replacing the stereo in my fiat Ducato camper van as it has stopped working. Problem. It has standard ISO sockets for power and speaker fitting into the back of the new jvc unit but on the "power" supply lead it is only showing me 12volts on the permanent supply on the lead marked on the plug as "ignition 12v" it is not showing anything even with the ignition switched on. Question? Do both of the leads need to be supplying 12v? can i make a bypass lead to the battery so i can find out if this is the fault? without blowing up my new stereo!!
I would be grateful for your help.
Thanks Dave.

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Yes. Both leads need to have +12v for the device to function.

Yes. You can run a bypass to the battery to make it work.

Mike

Posted on Jul 21, 2008

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