My car is fully loaded but when i bought it, it did not come with the alarm key fob. The car does have an aftermarket alarm that was installed, but I dont have the key fob for that either. Anyway the stock security light still functions, so wat I wanna know is if i buy the key fob will it still work?

 

Maybe - no one can say for sure - since we don't know what was done when the aftermarket system was added. If you have a friend with a maxima with a remote, you can try to program his remote to your car...
or you can buy one off Ebay for cheap and try it out... under 20 bucks for a remote on Ebay. 95-99 remote will work on your car. Programming instructions are in the stickies.