factory alarm, 92 Infinity G20

hello. every one im new in this trade evevy help is welcome! i have this isue for weeks ,but this is the place!! i'm sure some one wil help me!! im trying to turn it off  or(( cancel for good this factory alarm on( 92 infinity )    cuz  the car dont' star and his remote control dont work at all . some body said > find the  wire alarm disarm in module control  cut the wire and ground in the body of car i did  but  no luck.  i try to help this old getleman his being for months whit out his car.

thanks , guys(((  GCORREA))      IT'S  92 INFINITY G 20)  MODEL

thanks >MIKE M2  . See  the car es 14 years old  is posilbe  the star selenoide/ the car

its no make any sound and no flashing.  but inside the panel  is flashing ( security)   i try   star  the car but its imposible? but the tip u r give me  ? is real good!  i said probable is the star selenoide?    please! MIKE if  u have  any other sugestion will help me a lot  thanks again ?  ah   i look the car does not have any aftermarket alarm!