Stereo Volume adjustment?

[eurogreek1]

I like my music turned up pretty high but I noticed that there is a regulator (I'm assuming) on how high the volume goes? Any idea of how/if I could change that?

Again, I'm not sure about this? I just feel that my older X5 and my wifes X3 goes up all the way. When I say up all the way, I mean until it distorts loud. lol

Any thought or ideas would be great.

I know someone is going to say, "change out your speakers and add an amp"! I don't want to do that. I all ready added a 10" sub and it sounds great. Just not loud enoght volume wise!!