DupeA6

Wife has a TT she's deemed too small and impractical. She loves my A6 but thinks it's too long- she wants a 2 door. Found a 2017 S5, but the salesman says it doesn't have Apple Carplay- but the stereo place across the street can add easily. Is this so? Would it bastardize the stock system to do so, or is it a software integration that is seamless? I don't inherently trust salespeople but figured someone on this forum would know.
Thanks in advance-

Chris