what size speakers are in the doors ?

 

I'm not going to say it.

 

Search tool?

 

https://www.chevyhhr.net/forums/audio-video-17/

 

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