Any way to force Google now to respond to blue tooth button?

I want Google now to respond instead of "s voice".

Any way to force it?

Sent from my SCH-I535 using Tapatalk 2

Look at post #5 in this thread....

Change default voice dialer?

I got it to bring up Google now but the bt mic doesn't work.

If I uninstall blue tooth launch will my settings go back to normal?

Sent from my SCH-I535 using Tapatalk 2