2001 XC70 Speakers Don't Work

[SniperCat]

I am considering adding another wagon to the stable. A 2001 XC70 with 114k. It's a really clean car with a new timing belt, good brakes and tires with only a few minor things needed (fuel door latch & fuel filter. The one issue I'm most concerned about is that only the center dash speaker works. None of the other speakers in the car function at all. I used the search function but could not find anything.

Any thoughts?