I have audio, all I did was reboot twice both times with -v -f -F. I am also using the new rc3 of chameleon. My install of SL with basically the old boot 123 way using the required kexts and got a full vanilla install with no issues without even installing through 10.5. So I would say try out the new rc3 and reboot doing -v -f -F and the kext util to repair all extens