Bay fitted, though I removed the "contact" plate from the leads, and solder on a much longer lead. That reached the back of the Case, going down the inside front, bottom and halfway up the bac to the case to the one of the motherboard case fan connectors.
Packages arrived in excellecnt shape. The only thing that caught me, was a presumption on my part. I thought CDi, meant a button start. But it had pull-cord start. So if in doubt, ask the questions, their onlne form, when used is excellent.