There a new device called Android Auto Wireless. You plug it in your car. Then connect your phone to the device. Probably can't get before your trip. But could use it on you next trip and not worry about your phone being plugged it for long periods. https://www.indiegogo.com/projects/aawireless#/
If you are referring to Samsung Milk. Samsung shut down this service on Sept. 22 2017. They encouraged users to use a different music app and did not install it on their latest devices. You can Google Samsung Milk to verify.
Solution in this forum fixes: https://www.google.com/amp/forums.androidcentral.com/samsung-galaxy-note-5/631418-pdf-failed-download-google-chrome.html%3Famp