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Message: <blockquote data-quote="bmw_wmn58" data-source="post: 271694" data-attributes="member: 5078">1) the progman update has upgraded your CCC to at least above ver.25.x...it's true that without the progman update, your audio aux retrofit cannot be carried out...you can still fix ipod/dvd changer/etc...but the sound output will come up via fm transmitters...2)/3) like i answered (1), you can still hook up things but through an fm receiver...it won't sound good...fyi, there's another gadget that i consider better than alpine222 if you plan to do everything (audio aux/ usb conectivity/ bluetooth handsfree/a2dp/ipod/etc)...it called the dension gateway 500. see <a href="http://www.dension.com/icelinkgateway500.php" target="_blank">http://www.dension.com/icelinkgateway500.php</a> if you have a cdc, theres no need for updates of progman at all...it'll work with all these functions...4) like i said in my previous post, it's a useless hardware stuck on the car...5) that means, you have ver.25.x or higher updated on the CCC of your car...6) if you can recieve frequency above 90 mhz on your car, i don't think that the alpine222 did the trick...does it show RDS? (please confirm...) if it does, i think the installer has done something else to your CCC...if it doesn't, that means that they've added a booster to your fm receiver/antenna...</blockquote>