interior light key door and key control

Hello,

Can some one help me to design a relay circuit that will do the following.

When I open the door to my car the interior light comes on and stays on until i put my key in to the ingition and start my engine.

When i stop the car remove my key the interior light comes on and stays on until i get out and shut the door.

I have an aftermarket alarm with a trubo timer and remote starter (all in one) and my car is negative door trigger and I intent to install a central locking unit and a total closure unit to work with the alarm.

The alarm has a spare +ve trigger output wire.

regards

Sunnyboy368 

Hello,

The vehicle is a nissan pulsar 1991 (japanese car)

it has a two doors that both activate the dome light.

There is not delay module on board

the dome light is activated by the -ve door trigger .

if you want more info i can not think of any more so if you have specific question i will try to answer them.

thanks for yoru help.

Sunnyboy368