We usually get the Americans to do our CSAR for us.
Yes, the F3 Data Recorder was OK for music, but I had another plan. I got our squippers to make me up a patch lead that went between the mic/tel connector of my helmet and the aircraft portion. It had a short lead to plug into my own casette player, piping the music into the mic side of the system. That meant that hitting we had music in the cockpit and pressing the tx button allowed us to transmit to the rest of the formation - or anyone else that cared to listen. Worked in the Hawk and F4 too (with a different connector).