The more electrical I do the more i believe that you should just solder it and be done with it. I have a few wire taps in my Jeep but those just make things super simple.
Wire taps bring the suck.
I prefer to solder things, but having soldered radios and crap into the dash I'm done with that. glue filled heatshrink butt connectors and a good crimp tool haven't failed me yet, and they keep me from burning my fingers upside down under the dash.