I'm am thinking of purchasing a used F700BT. Mainly going to be using it for music/mp3 using the SD/USB. Not too concerned with bluetooth etc. I have some general questions however. I've heard there is a lag in the nav features which I can deal with but here are my other questions.
-How long is the start time for music playback from SD card on vehicle startup?
-How long is the start time for music playback from USB flash drive on vehicle startup?
-Can the tracks be selected with the knob instead of the touch screen?
-Is there lag between accessing tracks?
-Any other problems I should b
