I have 2 front and 2 rear bose speaker/ampliflier assemblies from my 1992 TT. They are free for the taking if anyone is interested in them for cores or some other experiment. No sound comes out of them, but I don't know if the speakers or the amps or both are bad. I'll throw in a bose head unit also. The head unit has the common problem of intermittently cutting out. Prefer local pick up unless you're willing to pay for shipping, probably about $30 to continental US.
I prefer to give them to a fellow Z-er instead of throwing them out.