i have a 1991 acura integra gs and for some reason my throttle cable is getting power from somewhere and melting the casing around it every time in hit the ignition to try and start the car i cant figure it out if anyone has any ideas please let me know!!! ive checked all of the grounds i can seem to find

 

Grounds don't matter the ground of your throttle cable would be the pedal assembly or TB. Look under your dash I guarantee you got a wire running against it that is either chaffed open or just lame installation of something aftermarket that has an exposed wire against it.