Hoist. Are those the speakers that your friend mounted on his serk? Any problems with them hitting the tank when handlebars turned all the way to one side? I have been thinking about getting a set of external speakers for my zumo. Was waiting to see these when they came out, were supposed to have been out this fall but looks like it is not going to happen. http://www.kuryakyn.com/products.asp?bn=harley&ci=3889 Also as to the kuryakyn adjustable pegs, I have them mounted on my bike. You will have to enlarge (drill) the small hole where the peg goes to allow your peg to attach. jj
The speakers I'm using are the ones referred to by Phil in the J&P Cycles link below. They're actually bullet turn signal housings that mount where the original SERK turn signals were mounted, before I relocated the to the spot lights. So they clear everything without a problem.
Actually, I'm taking it a step further now. Since I'm adding the KTP, I figured why not add speakers to the TP, Ultra style!

I ordered the 6.5" Speaker Pod Housings from eGlideGoodies (yeah I know) as recommended by Jim. Jim is sending me a 150W Hawg Wired amp to mount in the KTP for the rear speakers, which I'll make detachable with the rest of the KTP.
This way, I'll have some really decent sound when the KTP is mounted. Yet, I'll still have something, with the 100W front amp and Bullet Speakers, when the KTP is detached. I hadn't seen this done yet with the Zumo on a RK, but I didn't see why it couldn't be done. Jim thought it was a great idea, and sees no reason why it won't work!
So, my next question.....Has anyone ever heard of companies called Dragonfly or Hoppe?
NOT!!!

Hoist!
