NEWBIE: Case connectors to Mainboard

Hi all:

I'm working on putting together my first system. Almost done, with
considerable help from those on this forum. Many thanks.

One final question:

The Power LED connector from the case needs to be plugged into the
jumpers on the mainboard. However, the two "prongs" (sorry, can't
think of a better word, though I'm sure there's a standard) on the
mainboard are adjacent, whereas the wire from the case is 3-wide,
with a gap in the middle. Here's roughly what I'm talking about:

| ______
|-- | * |----------
|-- | * |
| |_*__|----------

Question is, can I just pull the wire out of the 3rd position on the
connector and push it into the middle one, and then plug the whole
thing into the mainboard? What's the right way to do this?

Thanks in advance.
-----
Wiley