Stereo Wiring problems!

October 30, 2006 6:11am CST
Just bought a bog standard Sony stereo for my old Fiesta 1992.No previous stereo fitted,just 4 wires attached to a plastic termination block(1 thick brown,1 yellow,1 yellow/white,1 red).Where do these wires attach to,& in what order onto my new stereo.I have no experience doing anything like this!!
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