I'm getting my new 2018 GSA ready for it's first road trip next month. I went to REVER.com and planned out all of the routes. For those who aren't familiar with REVER, it is an excellent route planner which overlays all of the wonderful Butler mapped roads making it quick and easy to plan out your trips. REVER allows you to download the GPX files (the route files) to an GPS unit. Unfortunately, these files will not download to the WAZE program on my phone or Google maps. So I am contemplating purchasing the BMW Nav 5 or 6 but I'm really struggling shelling out that kind of money for that thing! Is anyone using any other GPS options that they are happy with?