I have recently installed a 8200 NEX in a 2015 WRX with a Mastero SS SWC module.
I flashed the Mastero module with my car info and HU (8200NEX) and set the SWC using my PC.
Vol up/down works fine
Preset up/down works fine
Module button works fine moving between sources
iDataLik works fine as well as push and hold functions
However, none of the phone buttons actively work, Voice, phone pickup / hang up
I have been working with Mastero to identify a problem but they are saying it is wired correctly. Is there a specific setting withing the 8200 that I need to s
