Similar to what you describe, does the 149 remember what track you were on if you are just using a USB thumb drive and leave it attached? So, for example, I'm listening to track XYZ when I turn the car off, but leave the USB attached. When I turn the car back on, will it start playing right where it was on track XYZ?
I would hope that is the case, but my son put a lower end Alpine in his Wrangler and it does not remember the track when turned off! He had to find what he wanted to listen to EVERY time he started the car. So he put his old iPhone4 in the glove box and leaves it hooked up all the time and it DOES remember the track doing that!
(I'm looking at the 147, but assume that the USB functionality would be the same with the 147/148/149.)
Thanks,
Rob