This Project is fun and making usefull, if you search the car handle at night or no lights. Using 555 circuit to set trigger and reset, use the circuit 555 in this circuit , can make the light on handle turn on, you can connect the set trigger with + output from central lock open motors, and reset just connect with + output central lock close. You must put the output from alarm system.
And output you can use the flexible led stripe, or make driver to lamp up to 5w , or you can use Rellay. Enjoy !!
See also DIY Car Auto Rear View Mirror with alarm remote