As many of you may know, we LOVE our older Porsches. Rebuilding as race cars or just for a great trip around town, a 911 that is 20-40 years old makes for great fun. They don't have the fanciest tech in the cabin however.
Check out this post about Porsche and actually installing GPS/Bluetooth in your classic Porsche. They look factory built, well, that's because they are!
Our friends at Jalopnik have the details: http://jalopnik.com/porsche-will-put-navigation-into-your-classic-911-if-yo-1687429377
(photo credit: Jalopnik.com)