Sent my 700BT to a local authorized Pioneer repair center. I was having issues with not reading my ipod. I noticed the USB cable was a bit chewed up. I sent it in to have the USB cable replaced and they told me the nav board was fried. Are they pulling my leg? It took them over a month to diagnose it. I was also told Pioneer will not send them another one. The unit is not warrantied as I bought it used. Did I buy a lemon? Is this nav board issue a legit diagnosis?? If there's any information I can provide to help out I'd be glad to get it for you.