All but the front passenger door side speaker are not working. From time to time (rarely) the one on the driver’s comes on. I would love to be able to fix those since I do a lot of travel and music is a must during those. What might be the problem and can I fix it myself without it costing me a fortune.

thank you

 

Replace the speakers.

I suggest you scroll through the "How-To" library https://www.chevyhhr.net/forums/how-...al-library-21/

 

X2 replace all four door speakers.