By fufufuf10/12/2016So I got it, to replace TGY-iA6C I got with Turnigy evolution. Makes my 200 quad much tidier. To connect battery monitoring just get rid of the yellow wire and get it connected to your pdb battery output with black for groud and red for VBAT.
I had to drill bigger holes to stack mount it, doesn't look like I damaged anything as everything still works. Used 3mm drill.
By Vampy2k607/04/2017I got the RSSI working on this receiver.
See here:
https://www.rcgroups.com/forums/showthread.php?923419-RSSI-pins-for-various-receivers/page37#post37267255