Wiring

One thing is simply google "Bosch relay wiring" and use the photo search. There are hundreds (thousands?) of examples

bosch relay wiring - Google Search

Here is one representative circuit

12-volt-relay-wiring-diagram-bosch-5-pole-brilliant-ansis-for-automotive-photoshot-graceful-17.jpg

The bottom red wire is whatever supplies the switched load, in this case "lights." This red should be FUSED (or breaker) and large enough to easily carry the load amps

The blue "spotlights" is your load output, whatever it is you want to turn on or off. Again the wire to this load needs to be big enough to easily carry that load amperage

85 is ground, but you can put another switch in that ground lead, like Mopar does the neutral safety switch

86, green, is your "trigger." Whatever switch you are using to command the relay turn on the load, this green powers up the relay and makes it work