pay you skinniest neighborhood kid a buck to squeeze thru the back seat area with a socket or if you pick it, cut down a hacksaw blade to make a thin strip & use it to hold the door open & exert a slight CW rotation on the cyl as you reach in with a thin pick & push up each of the 5 tumblers till they "catch" then you can rotate the cyl the rest of the way. it will take a fair amt of practice & I would get the skinny kid to take care of it first.