snip

After some communication with Connects 2 (who were knowledgeable and
helpful), Sony and the fitting company (more about them later) we found
out
that early models of this changer DID NOT work correctly with the Connects
2
convertor. In fact, only models after a certain serial number were
compatible and offered full track skipping functionality.

snip

Found my old emails from Connects 2...

They originally told me (way back in July 2002 or thereabouts) that units
with a serial number below 16955 when paired with some connects 2 adapters
were prone to displaying the problems described in your original post.

BTW - After finally getting mine sorted out it has worked well for
45000miles worth of listening...(although searching this group will tell you
that there are some limitations to MP3 quality that should be remembered
when ripping/encoding... e.g. CBR at 256kbps and below is about maximum
quality the unit can handle and avoid using VBR... most people seem to use
192kbps CBR)

Regards

Dave G