i have a file that goes to a car navagation update. my unit which it was installed on just died and my wife has the same unit in her car so i went to update her's instead and it says the key has already been used which sucks the map update was like 300$ i have the one file off the sd card and am wondering if anyone can help in trying to modify that file so i can use it in her car. panasonic has been of 0 help and really could care less and they dont sell the update anymore so i have a worthless 300$ update sitting here which is driving me crazy.. ill update the file if someone is willing to look at it for me. its in .bin format but is not a image file like .bin sometimes is. i used hxd to try to open it and can see it but im not sure about what to change here. thank you in advance either way..