it is a little known fact that if you push the programming plug into the radio - after you put it in - it will make contact. For some reason, this has been a know quirk with this radio. Just give it an extra 'squeeze' and then try it. It is finicky. Also use the 'fail-safe driver' that I posted below after you uninstall the previous one completely.
Maybe this will work for you as it has for others that I personally know that have and use this radio.
Radio Shack: You've got questions; we have blank stares . . .
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