I have my surround sound system hooked up via cable at the rear of the PS3 and can get surround sound on everything except GT5, anything I need to do for this?
You sure you checked the GT5 settings, not the PS3 settings? Go to the options section at the main menu. There's a sound tab somewhere. I use a surround sound too, and I think that's where I went.
Greetings, did you get this sorted?
I run a 7.1 set up through my onkyo amp. No problems.
Make sure you haved changed the gt5 settings in audio menu to 5.1/7.1