Back 5x7 not working

[BigOleDom 10+ year member]

Recently in my car one one of my new back 5x7's quit working. It is not blown for sure, because it is making no noise at all, any suggestion as why it may not be working? I recently put in a head unit and when I did the speakers were working fine by themselves.

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[lostdaytomorrow 10+ year member]

Wire came loose somewhere most likely.

 

[tRidiot 10+ year member]

Could be a loose wire, a bad headunit channel, or you could have blown it... sometimes speakers just quit when they're blown. Break out your DMM and check all your wiring...