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2008 S40 SE AUX not working

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Hi all,

I'm desperately trying to get my AUX to work. It's built in in the centre arm rest. I have a 'mode' button on the head unit, but it will only select CD.

What's going on? It's like the head unit either can't see the AUX port, or it hasn't been programmed.

Please please someone help!


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