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I tried to update the nav system maps in my Cadenza and did something wrong it fried the system. I can't get nav, radio or backup camera to work now. I just get a frozen update failed message. My question is, does anyone know where the internal drive or flash memory is located exactly? Is it in the radio module or the touch screen module, or elsewhere? Has anyone ever found where the hard drive or other internal memory for the nav system is, if any? I asked the guys at a KIA dealership and hey told that the "PCM is behind the glove box". The PCM is the Powertrain Control Module (this has something to do with the nav system?) I can just buy another used OEM radio from eBay but it won't help if that isn't where the messed-up internal memory is. Any help is appreciated.
 
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