Why are my 2017 chevy spark rear speakers not working?

When the rear speakers are not working in your 2017 Chevy Spark then the first thing that you should check is the fader in your vehicle. Go to the Audio menu and Make sure that you have the fader set to half front and half rear. The most common reason rear speakers are not playing is because this got adjusted and turned off the rear speakers. If your fader is set to 50/50 then the next thing that you should check are the speakers themselves. You will want to Make sure the connections on them are tight and free from damage. You should also check the wiring at the back of the radio to Make sure it is tight. If that is all good then there is a chance the speakers have blown and will need to be replaced.