Old thread but......I just called the Daina Beach Service Center for a wheel alignment and when asked is that all we are doing? Joking said "and retro fit Auto Pilot" the answer was; do you already have the parts?..... I said I was joking but do you mean this can be done??? how much???
She went away and came back a few seconds later around $2.5-3k
I left it there as I am assuming she was mistaken
They asked if you had the parts? That sounds like she thought you had an AP equipped car with AP disabled and was offering to enable it for you (which costs $3k after delivery normally, and $2.5k during production configuration.)
One car has been successfully retrofitted by a very ambitious member - I'll find the thread on it when I get home if someone else doesn't add it - and he said it was so much work he wouldn't do it again.