I just had the fan (not the resistor block, the fan) go in my 2003 Chevy Cavalier. I've bought a replacement OEM fan, and I've run into a problem. The fan is mounted okay, but it seems to have the wrong connector.

The connector on the plug appears to be right, but the fan itself has a round connector which doesn't appear to accept what I have. (Picture of the two attached).

Has anyone seen this before, and what connector/pigtail/converter should I use?