The lighting wires for my egt & boost gauges are linked together. Can I link in my new fuel pressure gauge light wiring or should I run separate lighting wires? Or, could I splice in the light wires to the led for the alky kit? There is too many wires behind the a-pillar gauge holder already so I'm trying to keep them to a minimum. Is there a neg & pos connection for the lighting? The guy who installed my gauges used blue wiring, not black & white. Yes, these are probably dumb questions, but I need some advice.