automatic shoulder belt missing buckleand not working,can i install non automatic ones or how can i fix it

 

missing buck leand ?u mean the buckle on the rail is missing ? or it just fell out of its place ?

if it just fell out of its rails. you can fix it at Mazda. Mazda is covering that part for the life of the car.

if the buckle is "missing" ... then you're on your own.

Yes you can convert that belt to Manual seat belts. Search is ur friend.