Modify Your 2004 Alarm System To Beep For Lock Confirm

Written By: Jonnerd154

WARNING: THIS MODIFICATION ALSO CAUSES ALL PANICS AND ALARMS TO BEEP RATHER THAN HONK. BE ADVISED.

What you will need:
an SPDT relay rated for 12 volt use (I used SoundDomain's)
a wiring harness (I used SoundDomain's)
wire
butt splices
a beeper rated for 12 volt use
Misc. tools

1. Remove the black cover that covers the void behind the grill. To do this, use a flat head screw driver and pry the top piece from the snap clips. Lift the lever that controls the hood release and slide the cover off.

2. Remove the grill. On the top corners of the grill there are little hooks, pull them up to release them. Pull it streight forward on the grill, but make sure that you pull from the bottom, so that you do not break the snap-clips that hold the grill in place.

3. Use a model knife to cut back the spiral loom that covers the horn input. BE CAREFUL OF THE WIRE! Do this for both horns. Then cut the plug on the left horn, leaving as much wire as you can on the plug side. Set this aside. Use electrical tape and tape up the exposed wire in the loom you just cut.

4. Ok, this is the hardest part. You have to cut the wire to the horn on the right, leaving enough room to put a butt slice on the plug side, and the source side. I will leave the rest of that to you.

5. Tap fuse 21. This is a 7.5 amp fuse, so tap the battery side of it….This is the bottom prong/socket. Run the wire (We will call this wire White) up the console, under the weather striping (it just pulls off) though the door jamb, through the slit dividing the A-pillar from the side panel (you can tuck the wire under the rubber strip) and pull it up next to the battery.

6. Put a butt splice on one of the horn connectors, and splice it to a piece of wire. Then plug it into the left horn. Verify that it works by touching it to the positive terminal of the battery. Now run that wire along the top of that compartment (You will see some split loom, zip tie the wire to that) take a safe route though the cover that covers the hood latch stuff. Cut the excess wire, so that there is 3 inches of extra wire when it touches the right horn.

7. Now, get the other horn plug, and splice that, the wire from the other horn, and 4 feet of wire together. Plug the connector into the right horn. Touch the wire (we will call this wire Yellow) to the positive terminal of the battery to verify that both horns fire.

8. Get 4 feet of wire, and splice that into the wire that supplied the power into the right horn. (We will call this wire Blue)

9. Pull wires Yellow and Blue next to the battery, channeling them away from the radiator and moving parts. (Duh)

10. Get your relay…. Now, I hope you invested in the harness—It makes it WORLDS easier. Strip the leads, and splice the Blue wire to the blue wire on the harness—and the Yellow wire to the yellow wire on the harness! (DOH!)

11. Splice wire White (from fuse 21) into the white wire on the harness (this is the trigger).

12. Put the black wire on the harness on some unpainted surface on the chassis. I used the wire coming from the negative terminal on the battery, where it meets the chassis.

13. Connect your buzzer/beeper, the positive lead needs to be spliced into the red wire on the harness. And the negative, to any unpainted surface on the chassis.

14. Try it! Keep the key out of the ignition, and try to honk the horn. The buzzer/beeper should sound. Now put the ignition in “run” and honk the horn. The horns should sound.

15. If all is good, clean up the wires, and put the grill back in. Then put the cover for the “radiator void” back on.

I hope this works out for you guys. I will have sound clips and images up soon. Oh, and I don’t take responsibility for anything you screw up. I don't write this much for my term papers!