door sensor?

i have the vieritas 8c alarm system, one of my children managed to pull all 4 wires red/black/blue/yellow out of the part that is located at the bottom of the front door for the alarm sensor, ive took this off the wall (2 screws) but dont know where to put all 4 wires back into and only seem to be able to find 2 places for them to go into (and what order god knows), does this mean 2 off them go into one ?, any help would be appreciated