hi, i just had my radio converted to am/fm, keeping the orig look, using the orig antenna, with a usb port for cd's, and i don't know what the other port is for, anyway i have to recommend the guys work, did a fine job, so heres his name and address plus email in case your thinking of doing the same, after checking alot of diff people, his price was low compared to most. kims radio , grand blanc Mi, kusluskik1@outlook.com
How much did they charged you?
$280 to start with the basic am/fm, and then $70 for the usb install