Yes the one made for your own car is the best and the cheapest by far, just do your own, and do not over do the wires, like too many, better to be a bit too heavy than too light a gage, # 12 will work with most everything, although, I never use a key starter any more, as that was a thorn in my side for years, till I finally learned to hook up the starter direct to a HD starter button using #10 wire, a bit heavy, but it solved all those starting problems that I thought were from a low battery, no more, it pops off like a new baby. If you doubt it, hook one up along with what you already have and try it, you will love it, unbelieveable... PS, I use circuit breakers in place of fuses, and glad I do, many a time that got me home when something either came lose or touched something wrong..