Bluetooth Volume Hack

[Lowranger]

I've searched all over this site and the net for a definitive solution to the low volume level over bluetooth. I see repeated references to AudioPara files but it's never clear if this improves the volume levels over bluetooth, ringer, the speaker, or a combination of all three. My speaker volume is awesome. The volume levels over Bluetooth however are maxed out and still quite weak.
I've flashed the latest ROM from the HTC site and I'd hoped it would address this deficiency but it didn't. I picked up a really cool device on Ebay http://www.sonystyle.com/webapp/wcs/...9888&langId=-1 that I hoped would let me stream music to my car/boat stereos. It seems to work perfectly but the volume levels it provides are only about 2/3 of what I get by simply plugging the Touch into the stereos' 3.5mm jack.
I'm going to have to return the BT Receiver if I can't find a solution. I'm running up against the end of my return window so I need an answer ASAP.