iPhone 3.1 update breaks Kenwood compatibility?

[pFranzen]

Hi,

I have a Kenwood KDC-X693 head unit in my car, and I have been using it with my iPhone 3GS for the past few months with no problems or issues. I don't use the head unit's iPod controls-- it's all in the "iPod by hand" mode so the navigation, track selection, and whatnot are controlled on the iPhone.

I updated my iPhone to the new 3.1 OS yesterday, and it seems to have broken the USB compatibility with my head unit. I was wondering if anybody else has experienced this, and if so if they have figured out a workaround.

When I plug in my iPhone via the usual USB/iPod cable I get confirmation on both ends that it is attached-- the iPhone does its little *chirp* and the head unit starts connecting. When I play a track on the phone however, the head unit displays "No Music Data" on the screen. The track is definitely playing on the phone, but no signal is going out to the head unit.

Like I said-- this all worked perfectly earlier this week before the iPhone 3.1 update. Can anybody else comment on whether they've seen this behavior?

Thanks so much!

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[blkbeater 10+ year member]

try taking out the harness and plug it back in. this usually works

 

[ejschultz 10+ year member]

Try resetting the iPhone. I had to reset my iTouch for anything to work on it after I installed 3.1 and after the install did the automatic restart. I was also pissed when I installed the new iTunes. I had to load my library into it again and get album art for everything again. Anyone have that problem?

 

[nineball 10+ year member]

i have a similar problem with my 3g. when the 3.0 update was released including streaming bt mine did the exact same thing. i have to let it connect via bt first and once it is done i can plug it in with no problems. really sucks for things like getting gas. when i get back in and start the car it works fine until the bt starts, then i lose everything via the cord except for charging. unplug and plug back in and everything is fine again.