Hoping this helps you DIYers on installing the Porsche 997 PCCM + US version. It's a very easy job and takes a max of 1 hour. Here's the references I used.
PCCM+ DIY Guide
https://rennlist.com/forums/997-forum...
Radio Control Module - where the heck is it?
https://rennlist.com/forums/987-forum...
Radio Removal 997
• Radio removal Porsche 911 997 Carerra 2005...