This weekend I installed / modified the harness for a dash cam and radar detector.
I specified my cabriolet with the dash cam prewiring which provides a connector behind the overhead courtesy light panel. The connector has a ground, switched 12v and permanent 12v source.
My original plan was to install the Porsche OEM camera harness, which I purchased. A couple of issues caused my plans to change.
The cabriolet has very limited space behind the courtesy light compared with the coupe since the cabriolet latching mechanism takes up a chunk of space in this area.
I could have packed the harness in the space under the plastic cover, below the courtesy light, but I chose not to since I don't plan on using the Porsche OEM camera.
I also determined that the camera dock for the Porsche camera, in typical Porsche fashion, uses a proprietary connector not a USB C connector, so I couldn't use the dock to supply an aftermarket dash cam.
So I hacked off the male connector from the Porsche wiring harness I purchased and used this to connect the female connector behind the courtesy light panel. I used this to provide switched 12v to my radar detector and to a 12v to 5v converter which will power my aftermarket 70Mai dash cam.
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