I had it looked at by 2 dealerships and they both concluded that it was normal for the car because their showroom models did it too. It's unbelievable that there's no fix for this.
I don't have heated/cooled seats, I have the manual Recaro's.
+1 for Sunnyvale Ford. I took my car to Fremont Ford to get an electrical issue diagnosed (electrical noise coming from the speakers/dash area) and they told me it was normal when it obviously wasn't. Dropped my car off at Sunnyvale Ford for a second opinion and I'm glad I did, they diagnosed it...
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...
This is happening with stock audio equipment. I also don't have heated/cooled seats, so it can't be that. I think I'll just take it to another dealer and see what they have to say. It doesn't seem like this is a normal thing amongst S550's.
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...