Do you mean KP 1 (radio, wiper, fan) or KP II (dash lights on, engine run)?

See the fuse box diagram for 1992 240 at http://volvowiringdiagrams.com/

As you face the fuse box, supply side is at left, load side is at right.

How much current (amps) does that you're connecting draw?

Choose the load side that is powered at KP 1 or KP II.

Disconnect battery.

Strip wire end and connect an insulated term (crimp or crimp and solder) and connect to the fuse position on the fuse position load side.

A good time to spray some DeoxIT D at the back side of the fuse panel to dissolve corrosion without much wiggle on the 25 year old spade terms secured to the fuse panel back side.

Use proper rated stranded copper wire of gauge and insulation durability, such as 100° C rated insulation.

Run wire through the bulkhead plate grommet, driver or passenger side, to connect to that which is drawing current. (Watch them corners and sharp edges, as well as heat. May want use some sort of loom or sheathing appropriate for the under dash and under hood conditions.

May want to use an inline fuse between fuse panel and that you're installing under hood.

Helps to know what you're installing. As others here have probably installed the same thing, and can provide better guidance than I have here.

Hope that helps.

Questions?

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