I am looking at taking a trip from Chicago to Santa Monica and trying to stay on Rt 66 as much as I can. I am trying to figure out how to plan this route on my 2017 Honda GL1800 Goldwing. I have tried using the Honda Trip Planner, but I can't choose which route I wish to take. I see where I can select avoid highways, but this isn't doing the trick. Any information would be greatly appreciated.