No sound!

[imjustjack]

I'm not getting any sound out of my rear starboard speakers or either of my 2 sets of tower speakers. Music coming out of the front playpen speakers and the rear Port speakers sound fine.
Does this sound like an Amp problem or a tuner problem? I have three Kicker Amps/ subwoofer under inside the battery compartment. Should I start there?
Different question... I'm getting a really loud high pitch engine feedback through the Port side speakers. What causes this?
Thanks!

[imjustjack]

I was able to get the rear Starboard speakers to work by messing around with the tuner functions but still nothing from the tower speakers.

[Turbinesurgeon]

I was able to get the rear Starboard speakers to work by messing around with the tuner functions but still nothing from the tower speakers.

Check all connections first. Is the tower speakers on another zone?


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