2010 Chevy HHR Stereo or Speakers issues
 

My bet is the speakers are bad, the aux port might be shorting on the inside. You can get a new face plate or a junkyard one. Not an entire head unit.

Agree, speakers go bad from moisture intrusion

I'm not there, so no guaranty. You can put a whole new system in, if you want to.

Do you have the Pioneer Premium system?

The Pioneer system was an option from the factory, it has a sub-woofer and amp. That's what I meant.

If your HHR is a 2LT model then you have the Pioneer Premium System.
It was also optional in the 1LT

Since you say you have the 2.4L engine .. that comes standard in the 2LT so your HHR might be a 2LT.

If it is just bad door speakers that should not matter if you use stock speakers.

SF

Your speakers are bad. Mine was doing the same thing on my 2008 with original radio and I went to the local auto audio shop one month ago and they said as long as the tweeters were playing the radio was good. He said in 2005 Chevy started using speakers that the glue was bad and after awhile quit holding. I thought speakers would work or not work but he said because of this glue issue they would sometimes make contact and work. They replaced all four door speakers with upgraded speakers and I now have great sound again.

what size speakers are in the doors ?

I'm not going to say it.

Search tool? :gnonespet:

thanks donbrew
found a lot of good info like egg shape hole that needs adapters and more

6 3/4 inch speakers.

Broken items that need replacing do not work at all. sounds like loose wiring somewhere.

Sounds like that’s a possibility, however door speakers are susceptible to water damage and are known to short out internally in the speakers usually corrosion in the magnet. So no loose wires just rusty speakers

Do you have a subwoofer in the cargo bay?

I do in my 2011 2LT, yes