For the locations of stuff morad parts company has a guide on the ebay auction which can be had here, just click open when asked;

http://www.moradpartscompany.com/pic...%20install.doc

theres a pic in there showing the sensor location and describes it, howveer if you still cant find it i'll grab my camera and get a pic showing where with part of the front bumper in the pic so youll get a better idea.