I have a used KNS 80 RNAV radio I am going to sell on eBay, unless anyone is interested here first.
It has some internal delaminating on the display, which is common and cosmetic only. All functions work. I will sell it with the wiring harness (as removed including the circuit breaker; cutting only the wires needed to disconnect from my intercom system), the tray and ILS (OBS) indicator and harness.
I'm asking $800 for the whole thing.