marine

I'm ready to take the heat for being the novice here. I installed F90BT system except for connecting the pink and green wires (GPS and Brake) I recently found your site and began reading. The solution for DVD and setting GPS while on the go seems simple enough. However, like I said I'm a beginner. Somehow, I go into the files on the system (HOW??)and update it to read about 128 on the parking_brake_speed value and then connect the brake (green) wire to ground. What about the GPS (pink)wire? And is that all I need to do? Thanks for the help. I have a 2008 Ford F-150. Plain old work truck.