If the cable was not hooked up to the speedometer it could have just been flopping around inside the lining causing the clicking. When it's hooked up the speedometer input centers and stabilizes the cable. The inner cable pulls out of the liner on most cables. I can't remember which way you pull it out, from the top or bottom. If you do that you can lay the cable out on workbench and soak it real good with graphite spray. That's how I do all I install and it seems to work great cause it gets every part of the cable lubed (no dry spots in the middle.