I am looking for an easy install phone mount for my 2018 Cayenne GTS. I don't want anything that sticks to my dash or that I need to remove the vent to install. Nothing that is going to "leave a mark" like Chris Farley says! haha! Any good mounts that just insert into the vent? Not so easy to find online. Thank you so much!

 

Given the expense of replacing a vent I'd be leery of using one that latched onto them.

I've had the Rennline mount on my '17 since I loaned the car to them to design it. It does require a bit of disassembly to get to the PCM mounting screws that hold it into place.

Proclip makes two designed to attach to the side of the center console: https://www.proclipusa.com/collections/dashboard-mounts-porsche-cayenne-2018
I've used their mounts in other vehicles and they're great.

 

This one is the cleanest looking. No wires showing. https://nine-volt.com/collections/all/products/copy-of-wireless-charger-for-2011-2018-porsche-cayenne-with-magsafe-for-apple-iphone