Where would i find info on the best way to utilize a Spectra module telemetry (JR Tx) combined with the telemetry voice system.

Example of a setup: EDF 6s lipo and separate LiFe battery to power the servos (don't want tu use a BEC)

a) if i plug the LiFe in the Rx, i'll get the life status on the telemetry voice system, right?

b) if i plug the LiFe in any open ch (Optima 9), and plug the LiPo 6s directly to the SPC port (via a Y connector BEFORE the controller) i get the telemetry reading of the LiPo (that's what i want), right?

Would i risk any brownout issue with the b) setup? would it work?