Sory ze po ang

- turn the radio off, then on again
- press and hold M for 10 seconds
- display will show SN#nnnnnnnn
- press +/- to access settings
- press 1-6 to change settings
Settings I know of are:
SN - serial number
SV - software version
signal strength level
GAL - speed sensitive loudness
DSP - n/a
TP-V - traffic program volume (non-USA feature)
display check
tuner area selection
AF - alternative frequency (non-USA feature)
a tu masz jeszcze troche
Turn the radio off then on again. Dont touch
any button except the 'm' button - the button
you use to tune the radio frequency manually.
Press and hold the 'm' button for TEN seconds
or until the display changes. IIRC, it shows
the serial number of the unit. Normally when
you press 'm', the display will reflect that
by replacing 'ST' (stereo tuning) with 'm'.
When holding the 'm' button for this procedure,
the display should not do this - you will continue
to see 'ST' for the ten seconds.
Now if the display has changed, you are in a
configure mode on the radio. If you press the '>'
or '<' button you change modes. The mode you
want will display as "GAL (1-6)". This mode
allows you to adjust the speed-sensitive volume
control. Use the radio preset buttons 1-6 to set
the amount of volume change you want at speed.
Setting 1 is the smallest change, 6 is the highest.