AFAIK it is good to fill the fields for ALBUMARTIST, ALBUM, ARTIST, TITLE and TRACK.
Except TITLE and TRACK all the other fields can be set in 1 go for 1 album / audiobook at a time with the help of the corresponding fields in the tag panel.
The Track number can be set with the autonumbering wizard Ctrl-K so that you do not have to type in each number.
The TITLE can also be set semi-automatically if it should be more or less the same as the album plus e.g. the track number.
Or, if you CD rippng program has set decent file names or added tags already, then you could re-use the data from there.
See also this thread on other problems with Ford Sync: