I believe you can just pull back the fender liner and follow the cable. Looking at the length of the new one should give you an idea about where it will plug into its connector. If you're talking about the sensor itself, it is a black thing mounted behind the wheel hub and is held in by one bolt. Which will be possibly be frozen. If you get the bolt out then the sensor will likely be stuck in the mounting hole. Since you are replacing it anyway, you can beat it out without having to worry that you broke it.