Hi, I wondered anyone would be able to help. I have a 1991 4wd sapphire and trying to fit a Ford premium sound 2008 with equaliser. The problem I have is the plug that comes with the radio has some different colours to my loom on the car. Would anyone know what colours to join together or if it’s that simple? Any help would be very much appreciated.

Plug to radio

Wires from loom