JMP,
As njrqs mentioned, using caps is considered yelling, no need to shout, TBN is a great place to get advice.
As for the sprayer, since I spray during the daytime /w3tcompact/icons/cool.gif I unplug my rear light and use that connection for the sprayer. Works fine for me and I place a switch in the line to control the sprayer. The aux light wires for the BX are under the seat. Do a search on BX lighting and you'll find numerous references to these connections (keyed power and ground).
I'll probably run its own wire, fuse and connector from the battery when I get some free time that SWMBO hasn't accounted for /w3tcompact/icons/wink.gif.
Enjoy,
Michael