i saw someone recently in the kill stories forum had a used f22a1 auto tranny from an accord for sale. he had the ad on his sig. i dont deal with many auto's personally tho so i cant speak on the compatibility end of it, except to tell you that if it fits an accord with an f22 then it will fit your prelude with an f22, wiring/ecu etc would most likely be the incompatibility if any exists.

~boom