HELP!! asap soo old please help
 

I have an 88 targa turbo 5 spd and god damn the stock alarm. out of no were the car will not start at random and its getting so old, im pretty sure its the alarm bcz if i leave it alone for about an hour it sometimes starts right up. BUT theres no alarm going off. its weird but im guessing its the alarm, 0


Please this is getting so old when ive almost lost my job bcz of it.. if some one could just tell me were the stock alarm is at so i can remove it or how to remove it hopefully a fuse or somthing. Its a factory system for a fact. thank you guys very much.