The OEM spot is behind the right side cover. A round connector that should have a cap on it.
Like said by JimmyG, a dual male/male speak plug cable. I did 6' to reach under the tank, to the front forks, and then back down the tank to my bib pocket.
I found some pictures for you.
http://www.valkyrieforum.com/bbs/index.php/topic,78002.0.html