Amazon Alexa (Echo Input) Bluetooth Issue

[Big Sky Eric]

Background:

 

I subscribe to Amazon Music Unlimited...I pay for Onstar Unlimited Wifi for the truck (work pays for my cell but I have only about 3GB of data each month, so $15 for unlimited Wifi in the truck does make sense for me).

 

I had this grandiose idea to use an Amazon Echo for Alexa to be as hands-free as possible (I have a Custom with the 7" screen and no steering wheel access).

 

I purchased the Amazon Echo Input for $20 and figured, I don't need a speaker so it should hook up to bluetooth as a second device and work fine.

 

Well...when you go through set up, it connects and all works.  As soon as you shut off the truck, it will not reconnect to bluetooth without forgetting it and starting over.  

 

Anyone using an echo with success?  Any help appreciated.  I didn't get the Echo Auto because I figured with full time wifi in the truck, the echo will connect to the truck's hotspot.  No need to go through my phone.  But...maybe there is a limitation with the mychevrolet system?