These are a wiring MUST!!!!
1999 Toyota 4Runner
When wiring one would think, "i can just twist the wires together and use tape" This is true, however these are one of the most secure devices in wiring. They are really affordable. I feel if you are going to hook your whip up with new sound what does a couple extra mean. Feels good to know that they will work and connect flawlessly.
Pros: Super easy to use Quick No hastle connections