vs1002b breakout board

Hi I am using the breakout board for the vs1002 decoder, the green board not the red one…

I have wired it up based on an mp3 circuit i am building, but have a couple of questions after looking at the breakout boards schematic.

are GPI01,2,3 and 0 already wired to ground with the 100k resistors? I.E if my circuit doesnt need them any where else, can i leave them free. The same with the RX connection, is it already wired to the power supply, so that if my circuit doesnt use it, i can leave it free?

thanks

alex