dead bulbs or contacts

ok so when im driving at night and i turn on my lights the dash lights turn on but all the other lights like ac control and sunroof and those buttons all the lights dont work now with alot of trouble i took the bulbs out of the ac contol ect and got a 6v battery and check and they work so... what is wrong the contacts?? and how do i fix something like that anyone got any idea?? and some how could i change the colour to white or blue cos the greed really dosent go with blue neons :) any help or smart ideas would be great


thanks :)