PS.
The marker is always received and monitored by the left VOR on the 757 regardless of what ACP type is fitted.
Fargoo, I have to doubt this.
That would mean, on approach when you needed MKR audio, you'd have to listen to the ILS Ident all the way down the Glideslope. No? Am I missing something? Like why does the mystery panel (top) show VOR and ILS, rather than just NAV like everything else?