Don M Posted December 6, 2017 Report Share Posted December 6, 2017 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 Quote Link to post Share on other sites
bonee Posted December 7, 2017 Report Share Posted December 7, 2017 USB1 is for carplay USB2 for android auto. update works on USB1 and SD CARD. Ipod, USB audio and video works on both. Quote Link to post Share on other sites
Don M Posted December 8, 2017 Author Report Share Posted December 8, 2017 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 Quote Link to post Share on other sites
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