я честно говоря рули не разглядывал и даже не знаю, что за кнопка управления камерой и что она делает... камера должна автоматом включаться при заднем ходе и чем там управлять не очень понятно...
Вот инфа с английского оф сайта, русскому я бы тоже не доверял, но английскому доверяю:
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The CD 400 has a double tuner for best traffic message channel (TMC) reception. There are six premium speakers and a graphic info display to control the settings of the integrated dynamic sound processor. Aux-in for external audio devices. The CD 400 also includes digital media broadcast (DMB) radio.
The CD 450 system has Bluetooth for mobile phone connection, and audio streaming and USB for external mobile devices as standard. Again, DMB is standard.
With the Navi 600, the navigation map data and point-of-interest information is stored on an SD memory card, which comes with navigation data at street level for the UK and Ireland and major roads across Europe. As well as fastest and shortest route, you can set the most economical route, taking parameters such as roof load and an attached trailer into account.
MP3 capability, USB, auxillary-in and Bluetooth are standard, as is DMB. The Navi 600 has the same audio specifications as the CD 450.
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Вобщем в CD-400 не должно быть блютуса и USB