ive got am aem fic and i want to make a patch cable for it as aem dont offer one and i dont really want to be hacking apart my engines harness. i have found the connectors and reletive part numbers for the female connectors, simples, as that are all listed in the workshop manual. it doesnt list the male as they are not used on the car. i do not even know if they exist as a part i can get without finding a doner IS300 ecu to remove them from. the female plug part numbers are as follows:-
plug E11 - 90980-12142
plug E12 - 90980-12146
plug E13 - 90980-12143
plug E14 - 90980-12145
plug E15 - 90980-12144

will do a write up when im done, also let you know when its all in and been tuned, and thanks for your help.

i got a load of harness at work. take pictures of the bits you need and i can have a look for you and see if there is any bits i can get for you. most toyota's use the same type conectors.