I found a pic of someone bolting it on directly to the positive stake. You will need a really small nut and bolt. I used the smallest bolt on this kit. https://www.amazon.com/gp/aw/d/B0BN297MP5?psc=1&ref=ppx_pop_mob_b_asin_title
It should be a M3 size bolt that I used. I had the wire running...