classic motorcycle forum

I'm switching out the handlebars on my '75 CB360T to a flatter, clubman-style bar.  I'm having two problems.  The first is this: how do you get the throttle tube off the bar?  There are two throttle cables - one goes over the front of the throttle tube and one goes over the back.  I can't figure out how to remove one (or both) cables so I can remove the throttle (and I have to get the throttle tube off so I can pull the internal wiring out of the bars).  The second question is: the old stock bars had the wiring for the horn, kill switch, hi/low, turn signals, etc internally routed in the bars.  The new bars don't have the holes drilled for that, and even if they did, I don't think I could pull the wire through anyway.  The control body/pod thing that all those switches are on fits tight on the handlebars so there is no room to get those wires out externally.  Do I drill a hole in the controll body thing, or file an opening for the wire to fit through, or what?
Thanks much.