OK, here is a step by step guide to help you replace the horn at hand.
Locate the stock horn. It will be in the front under-hood area of the truck
and may be under the battery or inside the area between the fender and
the inner fender. Behind the grille is also a possible location for the
Disconnect the power
wire, which will be attached to a spade on the horn. If possible,
remove the horn. The horn will be held in place with a small bolt.
Purchase a replacement horn, either from the dealer or a universal aftermarket model from an automotive
Install the horn in the original mount if a stock horn is the replacement choice. Reconnect the power wire.
Mount a universal horn in the stock bracket if possible, or use a large
self-tapping screw and mount in a convenient location using the bracket
that is supplied with it.
Connect the wire connector to the horn. In most cases the stock wire
connector will simply plug on to the spade connection of the new horn.
If it does not fit, cut off the original connector and replace it with
a solderless female spade connector and plug that onto the horn
terminal. If the horn has two terminals, the other is to be grounded to
the car body using a self-tapping screw.
Please rate and god bless:)