I had a long reply typed, and the server change the site was going through ate it. The problem is with the internal regulator in your alternator, not the wiring. What you have described wiring-wise seems to be correct. It's not a huge job to change the regulator, but it does require dismantling the alternator. The tricky part is getting the brushes back in- - - -there's a hole in the back of the housing for a short piece of stiff wire that keeps the brushes retracted while you put the rear housing back on. A rebuilt alternator is the quickest fix because you'll also get new bearings and other parts as well as a regulator. Good luck!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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