Cassette deck navigation system, input your tire size and connect up your speedometer and it can tell you when to turn.

https://youtu.be/4qqnHtH1RAs?si=kayt3n4tbcdQFZ--

Anyone know where I can find one of these today, to install in our camper van?

#navigation #navigationapp #analog #classiccars #vw #maps #mappyfriday