Those kits are cheaper in price but kinda bo bo.
i mean look at that button, that'll never fit in the cig lighter spot.
I got mine from American customs it was the most expensive kit but uses a real honda button.
if you want to save loot just buy the genuine honda s2k button(30$ new)
2 small automotive relays.
2 prewired relay harnesses.
a small box of butt end links(medium size)
a small baggy of small pull ties.
TC wiring diagram (i can prob fax you it)
and be ready to void your entire electrical system and permanently
CUT your ignition wires...