2009 HHR issues with stereo driver side speaker works as does tweeters on both sides passengers speaker, rear speakers and woofer not operating any suggestions. Thank you.

 

It’s a common problem that moisture has killed the speakers, a look thru the Crutchfield website will tell you what size of speakers fit your HHR

 

I use 6-1/2” round speakers and adaptors like this. Also, some household stick-on insulation foam.

Do not just plug in the pigtails. The connector on the car’s harness are toast or soon to be. Cut the pigtail connectors off of the car end, solder to the harness, and shrink tube.