I'm trying to replace my sidemarkers with the LED ones from Diode Dynamics (https://www.diodedynamics.com/store/catalog/product/view/id/23139/s/led-sidemarkers-for-2015-2016-ford-mustang-pair/) and am having trouble removing the passenger side sidemarker. The driver's side pops out easily, but...
I've got a weird problem where whenever the car has auxiliary power (whether or not the engine is running), I hear this high frequency static hissing noise from what seems to be the speakers. You can hear it in this video:
https://www.dropbox.com/s/alooyt20l9frnpp/IMG_1711.mov?dl=0
The sound...