Update:
Ive done LOTS of research, this is what I found, (this is all from my understanding parts may be incorrect but i believe this is correct)
this is alot...
R11 (CSLD,CDR+ CDR-, CDL+ CDL- , TXM+ TXM-, MUTE) Breakdown:
-The CSLD,CDR+ CDR-, CDL+ CDL-, are all for audio using the R11 port...