i was "Enabled" on to this deck back in 2009, thanks to our pal, the Stuwster.
TH member "Dimitar Georgiev" had the deck up on EBAY for $200.00
i contacted him and offered what he was asking for it outright,
and he pulled it and sold it to me.
it is, by orders of magnitude, the very best Cassette deck
i have ever owned. it is, internally, identical to PIONEER's
ELITE version. the CT-91.
i am aware that the EURO/WORLD version
of this U.S./CAN. model, the CT-939, actually has a cassette-well door
with the "Reference Cassette Deck" legend in PIONEER's classic
beautiful longhand font that PIONEER advertised on the CT-S800
in their 1988 catalog, but left off of the actual production models;
if there are any members here that happen to have a CT-939,
and, for whatever reason, is willing to sell it at a good price,
or willing to part-out that door panel, please let me know...