4. We removed the old heat-shrink and white silicone tubing and saved the silicone tubing to reuse them. The heat-shrink can be removed with a razorblade. Be careful not to nick any of the wires as you do so. Next, we took the fan's wires and tucked them tight against the motor body and along the length of the motor wires. We held it tight and marked where the fan wires stopped on the motor wires. Then, we measured up a 1/2 inch from there, and we marked it with a razorblade.