I chose 503motoring in Portland OR to do my tinting. They specialize in top end cars and never mentioned the Macan being a problem. You might give them a call and see if they can recommend an installer in your area.
I had my two Macan GTS's front windows tinted by the same installer. They did a great job. They did mentioned that the little triangle in the A pillar was a pain, but nothing they can't do well.
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2017 Macan GTS. Volcano Gray, Black Leather Interior, Black RS Spyder Wheels /Summer Tires, Sports Aluminum PDK, Sport Mirrors, Adaptive Cruise / PAS, Ventilated Seats, Sport Chrono, PTV+, Surround View, Air Suspension / PASM, Black Roof Rails, PCM with Navigation, Lane Keep Assist, Lane Change Assist, LED Headlights, Smoking Package, 18-Way Seats, Premium Package Plus, Rear Sunblinds, Red GTS Logos, Chrome interior accents, Wireless Charger for iPhone, Armrest Tray, Smoked Side Reflectors.