POWER IT UP
The Siren controller comes with a 12-volt DC power wire and a 5-amp in-line spade fuse. Connect the positive lead to the positive side of the starting battery. Connect the negative lead to a ground. Remove the two screws that secure the cover to the junction box. Loosen the terminal labeled Battery 1, insert the positive lead and tighten the screw. Do the same with the ground terminal and negative lead. A green LED on the controller indicates the GPS is powered up; a red LED indicates it has cellular service (subscription required).