Does the dead FOB battery start function? The one that you use the fob to push the start button.@Roadglider09
You take the guts out of the factory fob and place the guts into the AJT fob. Doing this is easy although some guys say they think it is difficult to get the battery installed into the AJT fob. I myself have no problem installing the battery in an AJT fob.....
Here is a video from AJT regarding how to their fob offering for the JL: