Question about Sony CDX-GT300 CD Player

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Subwoofer in my car works only on tuner

I purchased a Sony CDX Gt-520 Head Unit for my car. I already had an amplifier from Interfire and 2 10'' JL Audio Subwoofers. I hooked up everything and it works extremely well with the tuner. However when I switch to the cd player or my auxilary (which has my ipod connected it) the amplifier shuts off and the subwoofers do not play. I have reset my head unit thinking it was a setting but it did not work. Do you have any ideas on what could be wrong?
The product underneath is not my product but you couldn't find mine.

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I had the same problem. most radios have a power antenna wire and an amp turn on wire it sounds like your amps are being turned on by the power ant wire that loses power when you put a cd in try swapping the blue with blue and white wire this should solve it

Posted on Nov 28, 2008

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