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Discussion Starter · #1 ·
Hi all, i have a after market head unit fitted in my A3 but noticed the sub is not working, does anyone have any idea what wires power it and how to get it working, thanks for reading, Dom.
 

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Id take out the Sub and put a multimetre on the wiring and see if its getting power first
 

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Discussion Starter · #3 ·
Yeah be a good starting point i suppose [Y], had a look behind head unit earlier and there's a few wires been hacked and left dangling around [:(]
 
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