Caravan navigation app for car

Hey,   I am sure that this has been asked before but has anyone found an iphone app for navigating with a caravan that supports apple car play?

I know co pilot have and app but it doesnt support car play.

I know tom tom has an app that supports car play but doesnt support caravans!

I dont want a dedicated sat nav for the caravan.   I have a built in sat nav on my car that does not do caravan routing so just want something for occasional use.    I am not interested in the tomtom camping sat nav, I had one of those and they destroyed it with a map update and refuse to reimburse people - seems most have that issue.