i asked the installer to do enable the use of the dvd and nav functions while driving now everytime i start the car i get a message saying that the unit is connected to the brake improperly. is this normal?

also if anyone else has a benz, the night mode is not working all i see are clouds on the nav screen.is that normal?

lastly, i had a bose system stock and now there is nothing coming from the sub in the back.

did the installer do a crappy job? the unit doesnt seem to look very flush either. he said something about the dash being curved and the unit being flat.

thanks in advance.

Do you have a Z2 or a N4 (or a old N2).

Is that N a lazy Z.

Z* my fault let me edit it.

Yes the installer did a crappy job. Try hitting the RESET to get rid of the parking brake warning. If it doesn't go away, its done wrong