Nice job on the build especially since Porsche would love to find something really expensive for you to fix. The keyfob could be just a programming thing, but from what I know, that can only be done at a Porsche dealership and will cost you about $300 to $500 and consists of them plugging in their "special" device and spending about 10 minutes working on your car. I did it for mine because I only had one key and that didn't help me sleep at night.