I have a Z110BT that has been flashed to a Z120BT. I recently purchased the Sirius modules for it (Sirius to Pioneer interface and the Sirius receiver). I hooked up everything up and can see the channel I am on as well as what song is playing, but there is no audio. I thought it may have been the Sirius equipments, so I replaced both of them but same problem. This leads me to believe that it's the Headunit. Any ideas?

which Sirius receiver are u using?

The receiver is the SCC1 and the interface to the HU is CD-SB10

Are those the correct part numbers?

I had the same issue, I had to disconnect the power to both the sirius and head unit, for about an hour, tried 15 minutes and still didn't work. I thought the unit was broke, but after having battery disconnected for over an hour, It worked again. I have also called both companies about this issue, and they had told me the Sirius unit was bad.. But I guess they where wrong.

But a month later I decided to go with the XM unit, due to its better interface..

I had the same thing and ended up finding the cable was in the wrong slot on the cd-sp10. It needed to be in the output slot instead of the input.