Bought a new S4 key w/ infrared remote built in ($$$$). Now I need to find the key code, or course the previous owner lost the tag somewhere, so where should I look. I believe it is a 6 digit code that starts with 2 letters. Door jamb, trunk lock, ignition cylinder, 1st page of warranty booklet has VIN and a bunch of other random #'s??? Anyone know??? As always TIA, Frank--