-- 2007 - 2008 -- Chevy Cobalt & Pontiac G5 AM FM Radio 6 Disc CD Player with Auxiliary Input for iPhone & More! Part Number: 25780215 Interchange Part Number: 638-02539 Compatible Part Numbers: 25775627 - 22714658 - 25775627 Option Code: US9 This radio will need to be unlocked by a GM dealer and paired to your vehicle. See below for details. This is for an AM FM Radio 6 Disc CD Player for 2007-2008 Pontiac G5 and Chevy Cobalt vehicles. This radio is for the 6 Disc CD ONLY. If you have the single disc CD version in your vehicle, this radio will most likely NOT WORK. The part number for this radio is 25780215 with option code US9. Please confirm that this is the radio your vehicle requires as some of the vehicles used more than one style of radio. Feel free to give us a call with compatibility questions. This radio has been cleaned,serviced as needed and thoroughly checked. Please Note: This radio will need to be unlocked upon installation in your vehicle. It can be put into a fully functioning test mode for 10 minutes at a time but will need to be taken to a dealer for permanent pairing. This process varies greatly from dealer to dealer, please verify cost with your local dealer before purchase. This radio is being sold as a REPLACEMENT ONLY! If you do not have this exact part number currently in your vehicle, it will likely NOT WORK. If you are unsure of your part number, give a GM dealer a call with your VIN and they should be able to provide you with the correct part number. They may look the same and have the same plugs but data streams may be different, not allowing them to code. For example, external amps are used in some cars and will not allow interchange, etc.