I can barely hear anything from the speakers?

This happens when the amplifier inside the radio or if your system has an external amp goes out or the fuse is blown, here are the radio wiring diagrams so you can see how the system works and which fuses to check.

Here is a guide to help you:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what you find. We are interested to see what it is.