Booking professional installation for EcoHitch X7422S on a 2021-2027 Toyota Sienna? These are the questions to ask about the hands-free liftgate sensor, the Sienna-specific steps, and what happens after the hitch is in. If you are planning professional installation of EcoHitch X7422S on your Toyota Sienna, the hitch itself is only part of the conversation. The other part is what...