I currently own the RX-V2400. I have attempted to follow Pg 73 of the manual for setting up the Zone 2. When I get to step 3 I cannot get the remote to say L : AMP. The remote screen simply says what I am curently using, eg; cab/sat. I am trying to get my second set of speakers (exterior) to work. When I go into setup, and access the zone 2 from there, I select zone 2 amp ON, I can hear sound from the exterior speakers, but the level is low, and I cannot raise the volume. What am I doing incorrectly? And how can I remedy this?