Is there a way to use Google Voice Search instead of S Voice for my bluetooth device?

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http://forums.androidcentral.com – For starters, I was already able to do this on my note 2. I'm trying to help my friend to get it on his S3. I used my Blueant Speakerphone for the first time with my note 2 since updating to 4.3. I couldn't get it to work at first trying Driving Mode, but then remembered to enable Mobile Data, then on my phone it brought up the window asking if I wanted to use Google or S Voice once or always for the Voice Commands. I just hit Google and always, now it always works with Google on my bluetooth speakerphone, which is much better than S Voice. S Voice seems worse than before the update. Is there (HowTos)