Are you looking at a Rio Car guide or an empeg guide? The Rio guide should be completely up to date.
As Peter said, "phono connector" is the English word for "RCA jack". The Rio Car guide refers to "phono (RCA) jacks" and states the line level. Maybe there should be a comment about not connecting them to the low level input of the amp.
I thought this was hifi general knowledge, but I guess a lot of people have never had contact with a record player. At our poker game last week I found it amazing to watch one of the players attempt to change the record and not have a clue how to use John's turntable. I feel so old!
Rob