We had the Comma Two installed in a 2019 Toyota Sienna  by a professional installer of aftermarket components. This was after e-mailing the company to ensure that our car was fully compatible with the system. When they went to hook up the system, the electrical system "lit up like a Christmas tree" and we had to get it over to the Toyota dealer Nearly every fuse was blown and it cost us a thousand dollars. Comma Two refunded our money for the system but would do nothing about the repairs as the system was installed by a "third party." If they don't install them, what do they consider a "non-third party."