Is this a bluetooth music receiver type of adapter? Like something that you'd stream music from your bluetooth phone or bluetooth laptopto so that your integra receiver can play the audio files or Internet radio stations, etc?
If so, I don't have the rocketfish, but I've got a couple of similar bluetooth receivers. Sounds like you've hooked it up similar to how I've hooked up my receivers, by taking the bluetooth adapters output and hooking it up to the amps auxiliary input.
I dunno... Have you successfully paired a device with the bluetooth adapter? And the volume is turned up on the phone/laptop? Or if it's an Apple product, is bluetooth audio selected for output as opposed to say, apples AirPlay technology?
Or on your integra, is it possible that one of the digital inputs was previously assigned to the AUX1 input, thus making the analog connection inactive?
best of luck!