First remove the step cover.
Took good quality 1x2 pieces of wood and make frame of same size opening of step. I screwed that frame on all three sides. I also added piece of hard plastic that cover all the screws to avoid any shortening if some wire ever come loose. That have me enough height and room for all wires. Then placed the step cover back. The carpet that covers the front side was tall enough to cover extra height. Of course it will make one step little higher but not noticeable for us. My wife did not even notice any difference till today. We have been on trips after doing this, no problem. Still holding good. You can also use some glue along with screws. I will try to post picture. Good luck.
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