Believe me, I did look!  - Just spent the better part of an hour rereading the users manual.  They don't always tell you the simple stuff 

 

I'm getting ready to update my maps and I know I need to use USB 1 for this, but which is which?  I have a USB memory stick with my music on it plugged into one cord and I plug my phone into the other  -  Which is which?

 

Thanks!

 

Don

USB1 is for carplay USB2 for android auto.

update works on USB1 and SD CARD. Ipod, USB audio and video works on both.

Thanks!

 

I overlooked the simple answer to my question  -  When you have music on a USB drive, the unit will tell you which USB port it's using.  The cable I have plugged into USB 1 has a female end on it which makes updating firmware & maps easy  -  A USB stick plugs right in.  USB 2 has a cable which plugs into my Android phone

 

I updated both the firmware and the maps with no problems!

 

Don