Ignition wires get warm

Well, I don't think the ignition switch is causing this. You are going to have to dig in with a wiring diagram and some troubleshooting skills. Only clue in your post is that the wires get warm after the ignition switch is turned on. That would eliminate anything tied to battery constant circuits. You also did not mention any issue with blowing fuses. That would eliminate any fused circuits. Problem will be with an unfused or overfused circuit in the ignition or accessory circuits. A little test with the key will help reduce this further. Do the wires get warm in the accessory position? If so, problem is in accessory circuit. If not, problem is in an ignition circuit. When troubleshooting, I find the best place to look is in the non factory add ons. Car stereo installations are a frequent offender.

Post what you find witha little more detail of what your car is equipped with oer any modifications made and I am sure help will be offered.