In today's modern 4x4 it is often very difficult to find a suitable source of power that is controlled by the ignition switch.
Use this piggy back plug to provide a switched power source.
Piggy back plug for the mini fuse slots. install your original fuse (if there was one) in the bottom slot, and the desired fuse in the top slot, and plug it into the fuse box in place of your original fuse. This puts your original fuse back in circuit, and also provides you a short fly lead that you can attach your required relay to for a key controlled circuit