installing problem for aftermarket dvd for mazda 5

[alan123]

i installed an aftermarket dvd for my mazda 5,everything looks perfect,but when i reverse my car,the image cann't automatically switch to the reverse camera,anyone know this?
below is the system i installed.

http://www.autoadas.com/new-mazda-52011-car-dvd-player-with-radiobluetoothtvipodusbsd-p-331.html

[Szczupak]

You've asked in the wrong forum - this is Polish MX-5 forum, not generally Mazda or even Mazda 5 forum But if You would buy sometime MX-5, You're welcome

[alan123]

: ,OPS,thanks.supplier helped me solve the problem