No sound coming out of the stereo speakers?

It sounds like the amplifier has gone out inside the radio, but we should check fuse #1 in the left-hand fuse panel inside the car and fuses # 56 and 67 in the fuse panel under the hood, this guide can help:

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

Here are the fuse locations and the radio wiring diagrams for the Bose system so you can see how the system works. If the fuses are good here is how to change the radio out, I would look on Ebay for a used unit which you can find fairly cheap like $50.00. Check out the images (below). Please let us know how it goes.