As stated, I'm experiencing very low Nav volume when listening to USB.

Listening to Radio, Nav volume is fine.

Surely I don't have to fiddle about adjusting the Nav volume everytime I listen to anything other than the radio!

SLA is adjusted accordingly.

I have a 900bt with 2.007 firmmware, running MatGTI mod and hacked EZRider with Updated U.K. maps.

Any help with this woould be very appreciated, as I'm finding this VERY annoying!

Thanx in advance.

im having the same damn problem but just with the volume of nav from the cd...my sd card works fine ! ......AHHH i hope someone knows how to fix this as now im not the only one with this problem

NAV volume is tied to USB/SD volume, see page 87 of the manual.