[stumped]

my local library has dropped overdrive and switched to Rb digital- Grrrr.
overdrive was so simple. it used only unprotected mp3 so I knew all the steps for playing a borrowed audiobook in the car via a flash drive
I have a horrible suspicion that those days are done - that the library loans will now be in some DRMed eaudio format that will need special apps and will be unusable in a car that expects to see mp3 on flash drives

I am getting very frustrated trying to google up useful info on rbdigital so if anyone will kindly shortcut the process and tell me what I need to know, that will be great.

our only interest in audiobooks is having them in a car friendly format, and there is no CD player in our car. it can only do bluetooth or USB.
I suppose that if forced to we could have a smartphone app linked via bluetooth to car system IF their DRM does nto block such links and if the apps are not total rubbish. I read lots of BAD reviews of the google play store apps for RBdigital. That would be a last resort thouhg, my wife likes to have the phone running WAZE for directions instead,