Question about Sony Car Audio & Video
It sounds like the remote terminal on your sub amp is not properly connected. The KDC-X493 has a wire to turn on a remote amp (Blue/White) and a wire for a power antenna (Blue). If the blue wire is connected to the amp remote terminal, the amp will only turn on when the tuner source on the receiver is selected. If the correct wire is connected, the problem is most likely in the receiver.
If the receiver is at fault, not under warranty, and you still want to use it, you can connect any fused 12V+ to the amp remote terminal. A simple way is to jumper a short wire between the power and remote terminals. Wire the jumper through a SPST switch conveniently located so that you can turn it ON and OFF as desired.
Hope this helps.
Posted on Jul 02, 2009
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Posted on Jan 02, 2017
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