I bought a nitrous setup used and it came with a window switch. It will be going on my 92 vette if that helps any. The wire coming out of the box are: 1 orange wire is going into the nitrous relay, 1 orange and 1 black wire are tied together and have a fitting on the end so that it can be either a ground or a power (I have no idea which one), 1 green wire that is not connected to anything (I figure that it is to be connected to the tach wire), and 1 red wire that is connected to nothing (the guy I bought it from said it didn't connect to anything).
If I use the orange/black as a ground then where does the power come from? And if I use the orange/black as a power then it wont be grounded.
Any help is GREATLY appreciated.
thanks,
brad