I suggest you buy this manual:
1937 FORD RADIO FACTORY OWNERS INSTRUCTION & OPERATING MANUAL - USERS GUIDE With Complete Installation Instruction and Wiring Diagrams 37 "Manual of Installation: Ford Ear Level Reception with Concealed Header Bar Speaker For use only with Ford Rotary (Reserve Power) Aerial for 1937 Ford Cars: Owner's Manual" This is a quality reproduction of the manual that was issued by Ford for the 1937 Ford radio. You will find installation and operating instructions, procedures for dial adjustment, spark noise elimination, generator & oil gauge interference, and installing ignition switch condensers. Includes the original part numbers, wiring diagrams, and lots of illustrations to clarify the instructions in this 8-page book.
Buy it here > http://www.ebay.com/itm/1937-FORD-PA...ZTugdi&vxp=mtr
or here > http://www.amazon.com/FACTORY-OWNERS...N%3DB00JJQN4TA