triple gauge install question *updated w/pics* Pics are now at the bottom of this page. Muddytazz also posted a pic of his tranny temp gauge. I am installing a cheap mechanical Summit triple gauge set in my '79 K20. I put them where the factory gauges were and they look cool (like you care, right? ) Anyway, the directions that came with them are of little help. I will try to find the wire in the wiring harness that went to the factory volt gauge, but if I can't find it then where should I connect the B+ wire? And if there is a bunch of air in the plastic tubing for the oil pressure gauge will this affect the reading?