We listen to audio books a lot! I do not want to download to phone or thumb drive before a road trip for many reason. We also acquire them along the way, and trade them with friends. I bought a KLIM Bluetooth player that will not sync. It recognizes that there is an Explorer but that is all.Memorex players‘ reviews say they don’t work bluetooth in autos, either. There is no audio jack, my ST manual says use Bluetooth. Has anyone been successful? Thanks for the help!