Yeah, I had crank my PDC volume all the way up and even then I have to turn my music down sometimes.
If you get into ESYS and start coding things, you can change the system sounds in the MINI to the BMW or BMWi sounds which have...uh..."beepier" PDC sounds that I like better.
Check out this thread about coding:I've been looking into this but can't understand which software I need
Check out the BimmerFest coding forums. Tons of info on getting started, what software you need, troubleshooting...
http://www.bimmerfest.com/forums/forumdisplay.php?f=175
Check out this thread about coding:
http://www.minif56.com/forum/409-electronics-audio/13841-first-bit-coding.html
BimmerFest is your best bet for getting all the software and support you need