EZ Wiring Mini 20 Circuit Installation

You're scaring me a bit with the butt splice connectors...You'll find exactly zero of those on my car. The only crimped connectors are the ones at the connectors which were done with the MSD crimping tool - which makes super high quality crimps. I always bust out the soldering iron for any splicing. I've seen enough butt splices fail over the years that they are always suspect. With solder joints, you can bullet proof their splices by using zip ties on both ends of the joint to a non-spliced wire in the harness. It will keep it from fatiguing (works like a strain relief).