Hey I have a similar problem to you. Just installed a AVIC-F700BT and using a aftermarket harness/adaptor. All the color codes matched up fine, ran accessory wire from deck directly to acc on ignition as per information gathered, also did hardware bypass.
My sirius is detected, voice recognition works, etc...but NO SOUND!
In AV setting cannot select mute...
WONDERING HOW YOU FIXED YOUR PROBLEM?