Through one of the 4 doors, presuming you have a key and you own the vehicle. If you don't have a key, and do not own the vehicle, you could smash a window with a heavy solid object, but as for...
You will see that there are two pipes on your radiator. One is on top of your radiator and one on the bottom. The pipe that is on top of your radiator connects on your engine head with an G-clamp....