[KevinH1990]

The tape on the wiring is due to the failure of the biodegradable insulation that Porsche and other German manufacturers used starting in the 1990s. You can read it about it here: https://jalopnik.com/5570865/11-terrible-automotive-engineering-decisions/ and here:http://986forum.com/forums/boxster-general-discussions/58768-boxster-headlamp-assembly-internal-wiring.html

The repair is not too difficult, but it does require opening the headlight and replacing the offending wire.

Here's a video showing how to open up the headlight: https://www.youtube.com/watch?v=-sjOnfMHED0