One of the things I like about this 'dimmer' sound (I copied mine from my own steam's f1 2011 audio/bundles folder and just renamed it, thanks for the tip since I never thought of doing it b4), given the fact that I always play sim-like (modded cockpit-cam view + visor + no OSD in FP & Qs sessions), I don't feel I have to display any mini-map anymore as well.
I can finally 'hear' the cars coming fast from farther behind (while I'm in Mix 1's fuel mode returning to the garage after a hot lap) so I can get out of their way to let them pass without risking impeding penalties. Since the mirrors don't show much (from the beginning of this series...), it's helpful to hear them coming from farther away behind more.
So again, thanks for the tip! Would prolly never have done it if you didn't post this...
( = me)