If you're intsalling the Hella Micro DE's that are the Toyota OEM kit or the kit from Performance Products into an SR5, then you only need to wire-up per the instructions and install the supplied relay into the fusebox. There is no fuse with the kit since the existing wiring is fused.

If you're not intsalling the Hella Micro DE's that are the Toyota OEM kit or the kit from Performance Products into an SR5, then I'm afraid I can't help.

Good luck!