Hey guys I just bought a 2009 Chevy Cobalt which has the usb port so you can connect a mp3 player and play all songs through the radio. I have a iPod classic and whenever I try to connect via the usb port it gives me the following error "iPod not authenticated. Check iPod version". In the cars owners manual it gives no suggestions other than ensure the iPod has the more current firmware installed which it does. The same thing happens to my new iPhone 3G. It plays through the auxillary port but I would rather use the usb port and take advantage of the controls that are built in through the radio for the iPod. Anybody have any ideas??

 

USB Compatible Radio RPO UUI



The UUI radio is equipped with a USB port on the faceplate for connecting peripheral devices. This radio is used in the 2009 G5, G6, Solstice, AURA, SKY,
Malibu, Cobalt and HHR. The owner will have iPOD command and control and will have playback capability with a USB memory stick (“thumb drive”).
iPOD Functionality
The radio will have control of the Apple iPOD audio files via the USB cable. The iPOD will be charged while connected with the radio turned on. The radio has
the ability to detect and play when the iPOD is connected.
These devices are supported:
iPod Gen 5 and 5.5
iPod Nano Gen 1
iPod Nano Gen 2
iPod Nano Gen 3
iPod Classic
iPod Touch
iPhone*
and most USB memory sticks and external USB hard drives.

 

TIP: The listed non-supported devices may be able to function through the USB port if the user sets the device to MSC (Mass Storage Class) or MSD (Mass
Storage Device).
TIP: If the customer receives a “Device Not Supported” message on the UUI radio with an iPod, and they have a supported device, or they are
experiencing radio anomalies with the iPod (connection problems, iPod lock ups, radio lock ups, etc.), it may be necessary to reset the iPod (typically done
by pressing and holding the Menu and Center buttons on the iPod). Additionally, the customer may need to download the latest firmware from the Apple website.
See www.apple.com for more details.

 

Other Operating Conditions
TIP: The following are known operating conditions and do not indicate a fault with the radio.
– The repeat mode on the iTOUCH phone does not work on the first version of iPOD firmware.
– It may take up to 20 seconds for the iPOD to connect, depending
on the sleep mode state it is in. The radio could start up in tuner mode, even though the iPOD was the last known source of the radio. After the iPOD wakes up, it
will connect and auto-source to the USB port.
– Not all external hard-drives will function (must be formatted correctly). Radio performance may be slow, particularly when searching for songs near the bottom
memory locations.
– Some USB memory sticks respond very slowly and may have intermittent connectivity issues.
– USB memory sticks with U3 technology (U3 smart drives) will not function with U3 enabled. See the specific manufacturer's website to determine if U3 can be
turned off or removed.
– With some USB devices, the radio may display NO MEDIA FILES if the music is not in the root directory


sorry for the 3 posts but the forums would not let me post it all in 1 post

Hope this helps you better understand what is compatible with the usb portion of the radio

 

thanks man for the tips. i actually returned the ipod classic 120gb that i had and exchanged it with the 80gb model and that works just fine. but now i seem to have another issue with my iPhone 3G. I paired it to the Bluetooth controls in the car and I can make a couple of outgoing calls and/or incoming calls either from the phone itself or using the car controls. however after about 3 or 4 calls it all of a sudden cuts off, meaning if an incoming call comes in and if i use the steering wheel control to try and answer the call it does mute the stereo, it alarms me of the incoming call but then it just cuts off and the stereo music will continue to play again however my iphone will still attempt to make the phone call. this also happens if i try to answer the call directly from the phone itself as well as trying to make an outgoing call. i reset the iphone and re-paired it to the bluetooth about 5 times with the same issue. i have read elsewhere that it could be because of the firmware on the phone which is 2.1 the latest available. some have said with the older iphone 2G this isn't an issue. should i assume this is definitely the iphone?? any fixes that you can suggest??