Figured it out. Off the BCM there is a RED/YELLOW wire which is for the cargo light. Trick here is the wire has 12V (battery power) when OFF and 0 volts when ON, meaning this wire is pulling to ground to complete the circuit. So you need find a 12V source for you LED positive that is always ON and then hook the negative to the RED/YELLOW wire for you cargo light. Seems to work for me, thoughts I'd share.