hey there, anyone first works at future shop? second i have 01 sunfire GT with a NUSTART (CM4200) installed... Today in the cold i started it as usual... got my winter bush and cleaned the windows... I went to open the door and to my shocking surpise my door had locked on me... Now after waiting nearly 20 min with the car on, my dad shows up with the spare key unlock the door and drive home without any problems... At home though the rear defroster stays on... so i disconnect the neg term and replace it to no avail.... help anyone i am going to future shop tomorrow to see what the deal is? now as for the receipt and owner ship the car was bought 2 nd hand with it... receipt i may not have and hugh issues there? Currently the battery is disconnected till i can either figure out what happen or get looked at!!!! Please help someone???? peace.

u can unplug the rear defrost on the back window IIRC....