Hi I've just bought a 2005 182 and has the cabasse stereo in it, it says mode on bottom of right round button is this the update vision? as when start car it doesn't work but it's not asking for code at top of screen but there is power there as it lights up at night and accept cd but then rejects it and when press button there's a beep anyone know what's issue and can I replace it if broke with cabasse unit that says tuner on front instead of mode