Money maker

Hey im installing the drv meter in my 1996 daihatsu charade and i need to know witch wire will be going to the negative side of the coil. There are 5 wires coming from the drv meter black (ground), red (acessory), white (illumination), yellow and orange (What are the orange and yellow wires). Also my car is a 3 cylinder carby'd beast and also has a distributor and a cut exhaust that goes baaaa baaaa baaaaaaaaaaa.....