I use headphones for gt6 and i can't hear music in game with voice chat is there any way i can mix my phone audio and gt6 audio to play in my headphones
You could get either a mixamp or some PS3 branded headphones. I'm not sure how a mixamp work, but headsets like the Gold and/or Pulse have a slider, which can alter the volumes and mix you wish for, build-in.
The official PS3 headsets don't go nearly as loud as I like. I don't recommend them. I have a set of Astro A40's with the mixamp. The a40's are nice but the mixamp is amazing. You can mix game and chat volume separately. And you can plug in a phone or mp3 player through a standard 3.5mm jack and listen to music also. You can buy the mixamp separately on eBay and buy a really nice pair of headphones/headset.