[Porsche9]

Double DIN set up would work fine if you are looking to replace the deck/NAV unit. Factory unit at this point isn't worth the space it's taking, unless you want to keep it period correct. Personally I just use my phone and mount it on the windshield on the left side of the steering wheel. The technology changes too fast to bother having something attached to the car. The cell phone gets replace every 2 to 3 years and I have multiple choices (Waze, Google Maps, etc.) that are all automatically updated. My 2 cents.