The only logical place to put the details of a 3rd party remote would be in something about Hijack (like the Pioneer you listed). Otherwise its functions are pretty much straight forward (though the FM and AM buttons actually do track seek by default).

Anyway, here's the list of codes. Add them to the FAQ in the appropriate place (as you can see there are a few codes that aren't possible with the flat Kenwood remote).

b9460A ;PrevTrack
b9460B ;NextTrack
b9460C ;AM
b9460D ;FM
b94613 ;src
b94614 ;Volume+
b94615 ;Volume-
b94616 ;att

Bruno
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Bruno
Twisted Melon : Fine Mac OS Software