need help on a/c system pleaseeeeee
 

hey there i have a 1992 honda civic Si hatchback
and planning to put an a/c system in the car,i found one guy wants to sell his a/c system taken out from 1996 honda civic hatchback and i just wondering if thats gonna fit in my 1992 civic ,i ask my mechanic a while ago he says not gonna fit but i call him again today he says doesn;t make any different which mean will be ok if i put 96 system to my 92,so i kinda confuse now is it fit or not....???
thanks for the help guys