2003 B6 A4 rear speakers no sound issue

crazyazz

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Hi everyone,.

Installed a Sony mex-n4050bt with a connect 2 ctsad003.2 module and get no sound from the factory rear speakers.

Rear audio is coming from the sony rear out RCA connectors and the remote line is connected from Sony HU to the Quad adapter blue wire as the instructions.

Still no audio from the rear speakers.

I believe the rear amp is not being activated still.

Is there a way to force power the rear factory amp by jumping some wires in the factory connector maybe?

Thanks