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I have a new 2019 Hybrid with the standard 6 speaker system(Not Bose). There are 2 6x9 speakers in the rear deck but they don't appear to work. Does anyone know how to activate them?
 

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Check to make sure the front/rear balance on the audio setting isn't set to full front. I know of no other control to disable any speakers. If all is OK there, check to see if the wiring to the speakers hasn't become damaged or unplugged by large items placed in the trunk.
 

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Discussion Starter #3
Check to make sure the front/rear balance on the audio setting isn't set to full front. I know of no other control to disable any speakers. If all is OK there, check to see if the wiring to the speakers hasn't become damaged or unplugged by large items placed in the trunk.
Thanks for your reply! The car is brand new and the speakers never worked. I checked the visible wiring and everything appears to be in place. It appears that the car was not supposed to come with rear deck speakers since it does not have the Bose system. The specs say 6 speakers -2 tweeters, 2 front door, two rear door. I looked on crutchfield and there was no option for rear deck speakers either.
 

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That's odd. I wonder if maybe the rear deck speakers are used only for the noise cancelling system. I'd go to the dealer and check another car on the lot with the same audio system to see if it works the same.
 

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It could very well be part of the noise cancelling system. Totally bizarre that they would sell it with 8 speakers and delete two of them from the stereo. Would they really do that to create separation from the upgraded stereo? For years they sold all of the gen 9 cars with the same size gas tank and limited the lower trims to 2 gallons less capacity, so anything is possible.
 

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That's bizarre. I have a 2018 Hybrid, non-Bose and they definitely work on mine. I wondered why they were there so I made sure they were putting out audio.
 

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I just went into my car to listen to the rear speakers. These are pretty much subs which won't have much if any midrange content like voices and instrumental notes. If your bass control in the tone settings is set to minimum, you won't hear much from the rear deck speakers. Crank up the bass and play some music with a lot of bass content. Bass is non directional, so you might not be able to tell it is coming from the rear speakers even though you can hear/feel it. Go into the trunk and gently touch the cones of the speakers to see if they are vibrating. If not, I think you should see the dealer.
 
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