You can decode your VIN, Door Tag and Valve cover tag here:
http://www.amx-perience.com/AMXtechPage.htm
A '69 AMX with Go-Pack should have Redlines w/14x6 factory wheels. (Fiberglass-belted "Polyglas" wide aspect E70 x 14 red-line tires). Non Go-Pack got E70 x 14 wide profile fiberglass-belted black side wall with 6" width wheel rims. Mag style wheel covers or Turbo Cast covers could be on an AMX. You could get 14x7 American Racing Torq-Thrust or Crager SS wheels as a factory approved dealer option. The 15" Machine wheel was an option in 1970.