Balanced Phono question - forgive my ignorance

So if you have a balanced phono stage (and I'm not re-hashing the argument whether it matters, is better etc. - I think that's been done), does the wiring from the arm to the phono then have a balanced connector, or is the balance achieved through attaching the ground wire to the phono, and then a balanced cable out to the pre-amp?

Sorry if this shows a complete lack of understanding of what balanced is, I was just curious from a wiring perspective. My system is completely using balanced connectors, and I'd like to not change anything, so a balanced pre may be in the cards.

Best wishes & thanks.