keypad in a RC car

[dukeoverl]

im hooking up a 10 digit keypad from ACT components to a small RC Xmods racing car, it is supposed to be a smaller model of what you can put into a real car, the keypad should have a correct code put in and the motor will start and keep track of the milage that will be displayed on a small LCD screen, if an incorrect code is entered the car does not start and an alarm sounds after a few unsuccessful entries, if anyone knows how to get started in this or ways too hook all this up through an EVBU board than any input would be appreciated

 

[dukeoverl]

i changed my car from an Xmods car to a larger Fast Traxx RC car, now im trying to build a tachometer to keep trackof the revolutions of the wheel, if anyone knows where to find schematics on this or how to build one i would appreciate it