Really Neu would have to do this for you. Each of the tiny wires have thin insulation on them that must be removed to get solder to stick to the copper. Neu does this on the last ~1/4" for you, but it might not be easy for them to do it closer to the can.
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I see. I did not realize there were individual wire inside the big one. So, is it safe to bend the stock hard wiring to get it pointed the way I want? Maybe warm them with a heat gun a little first?