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
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