T - tap connectors
Now this is just for illustration purposes. I took one of these connectors that makes the connections to the back of the gage cluster out of my parts car so you can see that this is what I was talking about in my last post as one possibility of tapping directly into the wires. My other thought is to just solder wires directly to where you need to make your connections on the copper prongs and slip over some heat shrink tubing and label each wire accordingly. Not yet sure which route I am going to take but this is certainly some ideas to play with.