Porsche Cayenne - Rear BCM

have a 2014 porsche cayenne. Drivers side tail lights are out. It both tail lights (fender and tailgate) -Brake lights and turn signals are fine- and the flash when you lock the vehicle, but the taillights dont light up when running . I have verified it isn't the lights.

after some research it Seems like it has to be the rear BCM- Seems they can be problematic if sunroof drain leaks and gets wet. Guessing maybe that has happened? I can get an OEM BCM for around $300 but it appears...

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