Chrysler Canada paint colours / codes differed from the U.S from the late 1920's until 1965. 1966 colours were basically the same as US, but some codes were different. Chrysler Canada began building their own bodies after GM decided Fisher Bodies would not longer do work for non-GM companies in 1927. So, Chrysler Canada acquired one of Fisher Bodies' Windsor plants and started building their own bodies.
Anyway, 1964 PP Red Maple Metallic was a US colour, and was used on 1964 Plymouths, code TT, Signet Red Metallic.
Ii you are ever tracking down a specific colour, the best code to use is the colour manufacturers' codes. Car manufactucturers change colour codes and names all the times, but the colour manufacturers' codes will never change. Unless the colour is dropped or replaced.
In the case of Chrysler Canada and its Red Maple Metallic, Ditzler's paint code is 71355. That number was also for the 1964 Plymouth Signet Royal Red Metallic. In 1965 the colour was called Sumac Red Metallic , also PP, for Chrysler Canada.
1964 Chrysler Canada. GG was "Aqua" (Aquamarine). The Ditzler code was 12736 and was also used on US 1964 Dodge, 880 and Valiant.
For Chrysler of Canada I have their paint codes and descriptive paint names, plus most paint manutacturers' codes, from 1934. Should also advise that the truck colours were unique from the car colours into the 1960's. For Paint colour chips, I have nothing earlier than 1937, and am missing 1942, 1951, 1952, and 1953. Plus a few individual chips here and there.
Any questions, please fee free to ask.