GTA4 car theft mission

If it is B's mail, the task of stealing a car is where to park at the port, and there are hints on the map after stealing a car. If it is S's MMS car theft task, first find the right car (displayed on the screen) and then drive the car to the garage next to the safe house on the upper right island for trading. As for whether we can enter, I don't know whether it is a problem of people or a problem of system. The human problem may be that you stole the wrong car or sent it to the wrong place. If it's a system problem, go a little further and then go there.