I bought a car off of Cars & Bids, Clipping - 2014 Porsche Cayenne Diesel Platinum Edition. Here I wrote about my 1 year with it https://notes.ansonbiggs.com/1-year-with-my-porsche-cayenne/
Modifications
This page contains Amazon Links
I hate webpages with Amazon links almost as much as I hate shopping on the website. (Maybe my time at Blue Origin turned me off of ol Bezos) However, it is now often the case that the only place to buy a part is on Amazon. I promise to make this as non affiliate as possible
Driver Side Window Switch
https://www.amazon.com/dp/B0D3TPJ8HK
This ones super annoying but the OEM one literally just starts to fall apart. I hate buying some random brand for such a nice car, but in this case $250 is way more than I want to give Porsche. This install was super easy and it doesn’t look too bad.
ODB Scanner
https://www.amazon.com/dp/B0D3DPDV86
I like doing my own oil change, and unfortunately Porsche makes it really difficult to reset the oil “light”. I tried a bunch of different models from Amazon and Walmart but nothing could reset the light.
Bonus: I get my oil from FCP Euro since its technically a wear item that can be RMAed. https://www.fcpeuro.com/products/porsche-engine-oil-change-kit-5w-30-liqui-moly-mahle-92adieselkt
Dash Cam
https://www.amazon.com/dp/B0BV27FT3H
CarPlay
I initially really liked the idea of the integrated system but I found the install pretty annoying, and my first one failed after like a week. I wasn’t super impressed with the integration so I ended up moving to a separate display.
https://www.amazon.com/dp/B09WRBFYK8
This display isn’t without its quirks, but overall I think its worked really well.