Can you make the speaker louder (Handsfree) on a Wizard / XDA Mini S?

[Guest zim_zimmer]

Hi,

I was using the handsfree option on my XDA Mini S in the car the other day as I had forgotten my Bluetooth headset. It was reasonably clear but it was just not quite loud enough... I pushed the volume switch up as far as it would go but it still wasn't that loud enough to overcome traffic noise, etc...

Is there any sort of tweak you can do to make the speaker louder on the Wizard device??

Cheers