VBLUE...good god...please stop telling everyone to check and replace their cables. WE HAVE!!! Im on my third cable and still having intermittent problems. I have a 3GS with avic f700bt with pioneer cables. I can get it to charge about one out of every four tries. I hate to rant...but unless you have something more constructive to say other then..."rip your unit back out and replace with another 50$ cable and try again" you should reconsider. Maybe just because something works well for you...you may be lucky...others, in the case of this forum...are having legit problems.