Guys, do not use the RA4 update, something isn't right. I tried it on mine, download was fine, plug it in, does a check and says it's a valid update image would I like to go to 17. Choose yes, it reboots and starts going thru these Unit numbers, mine makes it to Unit 4 of 15 then reboots, done it multiple, multiple times. Tried turning off the truck, nada, radio keeps trying to update. Tried both button reset, still tries to update. Pulled the USB, complains looking for USB. Tries truck off, no usb, both buttons, stuck in an upgrade loop. Any suggestions? I thought I saw a post a couple days ago with someone having the same issue, damned if I can find that post now tho...
----update-----
Hang on a minute, while scouring the internet trying to find a fix it somehow finished Unit 4 and is now on Unit 7. Something funky with Unit 4, rebooted at least 6 times, lost count. Will update as it goes.
----update2----
It's chugging away, up to Unit 11. Hoping it was just a multi Unit 4 thing. Broyd below had the same thing which in encouraging!
----update final!!!----
Rest of the Units went fine, system rebooted. Everything working fine. Heck, even Assist is working now, don't know if it did before tho, never tried it. Whoop!