Radio works intermittently

2009 CHEVROLET HHR
119,000 MILES • 4 CYL • 2WD • AUTOMATIC
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DAVID REED2
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When you turn the radio on some times you just get the twitters playing. When this happens, the seat belt warning bell does not work, the turn signal clicker and left on bell does not work. All you hear is the tinty twitter speakers. Other times when you turn it on everything works but the right speakers and not the left may play or maybe the rear and not the front speakers. It is crazy, what could be wrong with it?
Sep 14, 2017 at 7:52 AM
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STEVE W.
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Sounds possessed....

Or more likely the connectors on the back of the unit have a bit of corrosion or moisture in them and are causing different issues depending on what bumps have moved them around. I would start by removing the head unit and cleaning the connector on the back.

If that has no effect then it may be the amplifier unit in the back. It is behind the rear panel. You have to remove the seat then the trim panel. The amplifier is mounted just behind the door opening below the speaker. Re-seat the connectors on it after spraying them with contact cleaner. If that does not help you will probably need to replace the amp itself.

This is the OEM unit original to this vehicle correct? I ask because swapping units from vehicle to vehicle can cause some nasty problems like this.
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Sep 14, 2017 at 7:30 PM
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DAVID REED2
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Yes it is the OEM, I will check out what you suggested. Thanks
Sep 14, 2017 at 7:41 PM
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STRAILER
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Please let us know what happens so it will help others.

Cheers, Ken
Sep 15, 2017 at 4:41 PM