You couldn't of searched very much as there's a ton of info on this. The EuroMotorSpeed kit has everything you'll need (except the head-unit) for a basic installation.
Heres a link to Suncoast, which also sells the same kit. See the photo which shows the contents. However the photo looks like it is for a different version since it has NAV TVAftermarket Radio Installation Kit:Suncoast Porsche Parts & Accessories

Complete 9X7 Custom 2 DIN Kit Includes:
- Trim Bezel - Matched to Factory Volcano Grey (also available in semi gloss black for 2009-2012 9X7 vehicles)
- Includes stainless steel mounting clips for simplified and secured bezel attachment
- Complete with speed sensor & illumination wires, factory harness & radio antenna adapters, wire taps, solder shrink connectors and nylon cable straps
- Housing brackets designed for proper installation into factory opening - Featuring spring loaded secure locking mechanism & built-in guide rails
- Instruction Manual Included

You can't just slip-in a 2-din head unit, the kit also has side brackets that adapt the stock console mounting. You'll also want the detailed instructions that tell you how/where to splice into the car's speed sensor, etc.

 

short version. Get up w/ Loi from Euromotorspeed. He'll get you set up right. Simple as that. Dude is amazing.

 

Thanks all. I bought the kit and hope everything is going smoothly for my installation.

 

To retain steering wheel controls and other features:
CRUX Interfacing Solutions ::: SWRBM-57