AM/FM/Cassette Radio Internals

I few days ago I was scrounging around the attic of my grandpa's old shop and scored a Ford AM/FM/Cassette radio, looks to be in good shape. The radio is missing the tag with the engineering number, but I believe it is from around 1983-84. It has yellow and blue on the dial and is the old two-shaft style. Anyway, I opened it up and some of the wires are disconnected. Does anyone have pictures of the inside of this style radio, or better yet diagrams of the radio internals? I want to make sure all of the wires are reconnected to the right places.

No pics but I can help. Post pics of your inside and I'll tell you what goes where.

OK here are the pics. All four wires were disconnected from the small circuit board mounted underneath the lid. There are four wires: red, orange, yellow, black. The terminals on the circuit board are EIS 1, EIS 2, EIS 3, EIS 4.

I also want to verify that a shorter black wire mounts to the ground terminal on the back of the radio (as shown).

 Ok EIS 1=Red
              2 Yellow
              3 Black
              4 Orange


If on the black wire coming from the speaker connector, it is common to ALL 4 of the speakers.

 Hope this helps.
 Randy Brown