Yes, I went by the labels. I just checked the wires with a tester. I'm not getting the right readings with the ignition on or off. Memory is getting like 3-5 volts and the ignition sense is getting like 8 with the ignition off. But why is my tape deck working fine? Can I try connecting the empeg directly to the battery by connecting memory and ignition sense to the +pole and the ground to the -pole, just to see that the empeg is working?

EDIT: I have a 91 Nissan Maxima