So I have a JVC KW-NT1 car navigation deck in my car. Which also has USB plugin for Iphone/Ipod. Ever since I upgraded to the new 4.0 OS on my Iphone, it will load my playlist into the deck, but as soon as I go to the playlist and try to go to a different artist, or switch the song on the actual deck, the song just freezes and I have to unplug and plug back in and start all over. You can switch to control the playlist via the head unit or the Iphone itself, if I go and switch that it freezes as well. Anyone know anything I can do to fix this? Basically unless I just plug in the phone and let it play whatever its on, it will play fine, but as soon as I try to manually change anything, it just freezes.