Looking for schematic for Huskee TM104 radio

I found the AR 77 on Ebay and bought it. I should have it in the next week or so. As far as the radio goes from the pictures I saw it was taken apart and out of the case. I looked at it and figured how to wire it up, it was odd. I was able to get it playing fine. I don't think they could figure out how to wire it up as it had a 12 volt to 6 volt and also a positive or negative ground setup.

I am looking for a schematic for a late 1960s Huskee TM104 radio. It is a fender mount tractor radio built by Motorola. There is a similar one in the ar18 motorola service manual. Its in the Sams AR77 book. I mainly need a scan of the diagram. Thanks in advance.