Every now and then I see my driver side blinker flash. The truck is off and key is out. Anybody have a clue?

 

Front? Back? Both?? Got a factory alarm system?

 

Both. No alarm but do have aftermarket remote start that I don't have a fob for

 

and its only one side??? That is just weird. Turn signals shouldn't have power when the key is off, brakes do, but, that should be both lights, and only in the rear.

Might be a short somewhere.... but god only knows where.