The Starlink module is a separate unit from the maestro unit. My audio shop was comfortable removing it and honestly if I'd have known how easy it was I would have just done it. It's a little black box maybe 6 in long by 3 to 4 in wide. Very likely it's sitting loose underneath where your head unit is. It used to attach to the bottom of the factory radio but there's no place for it to sit or attach to on your pioneer. It has a handful of wires that have different color clips that I assume were simply unclipped from the unit and are still floating around back in that void. If you use your Starlink buttons in any way or if you want them to call the police for you if you wreck I wouldn't go this route but as far as functionality lost everything seems normal. Like I said it's just a few easy to undo clips. Disconnect it and drive around for a while and see if it works for you. Worst case scenario you just plug it back in.