Mercedes-Benz Sprinter Operating Instructions Manual page 191

On-board computer (vehicles with steering wheel buttons)
The number of menus depends on your vehi-
cle's equipment.
Operation of the audio equipment using
i
the steering wheel buttons and making set-
tings using the AUDIO menu only function
with Sprinter audio equipment. If you are
using audio equipment from another man-
ufacturer, the described functions may be
restricted or not available at all.
189
Z