I need help with the wiring diagram to power it up and witch one is positive and negative to the unit and I need know witch one is the + - for speaker ports any help would be greatly appreciated .
Here are the rear panel connections. The power input uses an obsolete connector, which is usually found in burned / melted condition. I replace them with a 3-pin Molex connector, which is an exact fit for the panel cutout. The speaker output uses 0.25" quick disconnect terminals.