I live in an RV and just got an Echo Dot. I am planning to use the in-dash radio/GPS/entertainment system to stream music, like I can do with my phone. When I search for the unit, it is displayed on the Bluetooth setup page for the Dot. When I click on it, the Alexa web page says, "Unable to connect to your Bluetooth device. Please try again." That's all the information I get. Can anyone suggest something to try?