See also:

Features
Like most up-level BMWs these days, the 650i can be equipped with a dizzying array of technological wizardry. Ours came equipped with an optional lane departure warning and correction system, adap ...

Snap-in adapter
Installation locationIn the center armrest. Inserting snap-in adapter 1.  Press the button and remove the cover. 2.  Insert the snap-in adapter at the front, arrow 1, and press downward, ...

Treble, bass, balance, and fader
▷ "Treble": treble adjustment. ▷ "Bass": depth adjustment. ▷ "Balance": left/right volume distribution. ▷ "Fader": front/rear volume ...