Replacing the ignition switch requires a very short screwdriver with thin flat head to fit the screw holes. Of course Porsche sells one but I made my own out of a common 1/8 x 4 Craftsman screwdriver, P/N 41589. Shorten both the handle and shank with a hacksaw and use a metal file to create a new tip. Then narrow the tip to 1/16" wide to fit in the screw holes. A Dremel grinding bit made this part much easier. The total length is 2 1/4" and next time I would make it even shorter.
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2003 Boxster - Sold but not forgotten