Genuine audio of a WW II kamikaze attack is probably impossible. We are lucky that by 1945, the US Navy was shooting color film of kamikaze strikes, but these films were silent. The sound could be dubbed in later. Anti-aircraft guns firing and the sounds of a radial aircraft engine, like a Nakajima Homare 14 cylinder engine, can be taken from authentic sources and added to a film of a kamikaze attack.
The final climatic scenes of the Japanese film "Kimi no tame koso shi ni iku" has what sounds like authentic anti-aircraft guns firing and WWII airplane engines roaring.
http://youtu.be/czAwsE7yLBc