Just finished installation of Curt 13478 hitch and curt 56420 wiring harness. This was on a 2023 SX. As others have said the wiring harness was way easy once you remove the drivers side panel. The hitch install was straight forward but it was a bugger to get the bolts on the passenger side even with the exhaust support removed. I had the car up on supports so there was room to get at everything. Looks nice and actually the same ground clearance as on the Sienna which was traded in for the Carnival.
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