Searching the FAQ first...ok, doesn't seem to be addressed.

I've also got a Parrot CK3000. Unlike matthew, I'm wiring the empeg (mkiia) through a head unit, so I'd like the mute-line from the speakerphone to send a mute signal to *both* the empeg and the head unit.

If I wire all three wires together (empeg/headunit in parallel), the empeg never mutes, and sometimes the headunit mutes for no reason. So, right now I've just got the mute line hooked up to the headunit only.

I looked up and down on the empeg (v2.0) menus and there seems to be no setting regarding muting available.

The hijack kernel has the ability to map the mute line to other functions, but I believe the default function is mute (+pause when playing music files).

Do I need to do some custom wiring with diodes/resistors (as suggested by terry on the parrot ck3000), with relays (my idea, vague) or something else?

Should wiring in parallel have worked?

thanks,
-brendan