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Originally Posted by amitmishra4

I had to perform an additional step, may i add(not a 100% sure if its necessary or not):

2.5) Unscrew engine lead cable in the engine bay by removing the engine cover and prying open a little plastic cover using a flat head screwdriver to expose it.

Here is an image I found on the Pelican site: http://www.pelicanparts.com/techarticles/Boxster_Tech/82-ELEC-Alternator/images_large/Pic2.jpg

Good write up for reference. Thanks.
Amit

I did the same when replacing the voltage regulator.