Identify this wire. Power antenna control?

[quikveedb2]

I'm trying to wrap up the install on my power antenna, all I need to do is find the mythical white wire that provides power to make it go up and hook it up to my Pioneer system remote control wire (blue/white) to the head unit, according to this thread;

http://www.r3vlimited.com/board/showthread.php?t=139509&highlight=pioneer+power+antenna

The PO, or one of them, installed the aftermarket radio & did a hack job of cutting the factory harness & running their own speaker wires. I took a quick pic of what I'm looking at;



Is the center (white) wire what I'm looking for? Or is the power antenna control integrated into the OEM stereo harness? I have no interest in hooking up a hot 12v to a wire that I'm not sure is right, so some help would be appreciated, tia!

[quikveedb2]

Figured it out, to answer my own question, yes that is the power wire that sends the mast up. Seems strange that they didn't integrate it into the factory radio harness, but w/e, my shit works now.