Hi All, I just got the iPhone XS Smart Battery case, which i think is great. However, i am used to having my iPhone magnetically car mounted. this requires me to stick a metal disc on the back side of the phone. Does anyone know / or have tried to stick this on the back of the Smart Battery case ? Does the 3M sticker ruin the case, and cause it to rip out the silicone when you remove it? thank you!