Just an idea that i used on a different bike...
I ran a power cord to just under my tank. I used the same type of connector that Battery Tenders use. I installed a power outlet in my tank bag.
It was beautiful because i could split the plug in my bag and charge things that i wanted to keep dry in my tank bag. I also had a cord from my XM radio running into the bag and most of the wire was hidden. when i didnt want or need power i could pull off my tank bag and all that was left was one plug that i could tuck under the tank. If the bike was gonna sit for a while there was no need to run a battery tender wire because i could just tap right into my power connector and charge the battery.
Here is the kit i used.
http://www.powerletproducts.com/shop...ectrix/LUGTRIX
i just bought the tank bag kit from them and bought all the extra wires and connectors from a local electronics shop.
Hope that helps give you a different perspective at least.