Headunit not taking ignition power

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Tsacc03
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Joined: Sat Mar 18, 2023 11:27 pm
Drives: 6n
Location: Middlesbrough

Headunit not taking ignition power

Post by Tsacc03 »

I’ve recently installed a new headunit into the polo, when connected to the standard iso connectors on the car the headunit has power from the constant live, but as soon as the ignition is turned on all power is lost.

I’ve tried an adapter and switching the red/yellow wires around but this hasn’t resolved the issue.

Any help is appreciated
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JUUL
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Posts: 69
Joined: Sat Jul 31, 2021 8:55 am
Drives: 6N 1995
Location: Netherlands

Re: Headunit not taking ignition power

Post by JUUL »

Do you mean power is lost when the ignition is switched on? Or when switched off and then on again? The unit forgets all presets/settings?
Yeah switching the red and yellow wire would usually fix that problem, maybe someone messed with the wiring in the past. Best thing to do is get a multimeter and figure out which is the constant + and the switched +
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