coronet24

Hi, I have a z1 since January 2007 into my BMW and I want to change the LED color since the first night drive with this unit. All is orange into the BMW and this blue Keypad is too lightly. Someone has the sevice manual for the Z series? I don't think it's too complicated, but I don't want to make a big mistake opening it. Another ask: someone know if it is possible to change the menus from blue to red ? Many thanks, Coronet24