I believe you need to pull the grill to get to the condenser. Behind the condenser are the radiator mounts. It has been a while since I have worked on one of these so I am going off of memory.
By the way, why do you have to remove the radiator to replace the belt? You should only have to remove the hoses. If your belt is bad after 3 years, I would think there is another problem causing the belt to go bad.
When the belt is off, check your idler pulley and tension-er pulley!