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			Thanks for all the help guys.  I try to be careful and I was using a meter because I know they don't draw current from the wire you are testing.  For that reason I also didnt think a lamp would have been better but an LED version would draw very little current.  I had the ground side of the meter held at a ground point so I really dont know what happened.  Thats where the Guinness comes in. 
 
To answer some of the questions........ 
 
I have a cheap little digital meter from radio shack - nothing fancy 
 
The motor is not currently supercharged but thats the direction Im heading.  Im trying to get the controls and extra diagnostic stuff in place first.  I realise Im going to have to look at how much current each component needs.  Sounds like a wire from the DME bus is the easy solution (Meir suggested black/brown at pin 56)  but pulling too much current from the is scary.
		 
		
		
		
		
		
		
		
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