Its an internal regulator.
I didn't even consider the bulb... meh its a bulb... Damn that F****** bulb! Who knew it was an on/off switch for the alternator! WTF? The whole car can be disabled by a single bulb? The light does not come on with the key so I'll swap it out with a spare and see if she charges. It always glowed at idle and I thought 'Damn! I finally solved the glowing at idle problem I have had for 17 years! Cool!' *Face Palm* Seems I am now in possession of a spare alternator...
Lets hope its the bulb or I'll be calling you all wankers for getting my hopes up!
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Michael
'82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah
'13 Cayenne GTS