I'd like to add a second horn. Not an air horn. Its actually a horn from an alarm system minus all the electronic components, just the horn. I'd like to wire it in to where I can use the horn switch on the steering wheel but also use a toggle switch to be able to use the stock horn with the toggle switch in the middle position. With the toggle switch in the top position it would just be the second horn, (using the horn switch in the steering wheel), and in the bottom position of the toggle switch the stock horns and the secondary horn would work together.

I have posted this before and did get some good suggestions but I am no electrician. I need a schematic that speaks to a layman and how the toggle switch wires to everything. I'd also like to know where to put a fuse and what amperage. Thank you in advance people. If it helps I have a Bosch relay that has 5 contacts, (30, 85, 86, 87 and 87a).

 

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ok i can tell you how to do it and what you need but im not sure if it would work like you want it cause i have never tried it so ill draw up a diagram and pot it later for ya so you can see if it will work but you wont need the relay

 

Thank you thank you. If I can just have the switch work the horns seperaatly and not together that would be fine. I appreciate it.

 

1 -toggle switch part number from napa - ECH TG6143
2 - 14ga wire about 15 ft of it

ok its pretty simple eather cut the wire for the horn you will have to find it i dont know what one it is for your rig but when you do hook it up just like the diagram but on the switch use one side of it cause its a 6 post switch and you dont need a fuse for it cause your going to use the stock fuse and you dont need the relay if you have any questions feel free to pm me

ok i from the factory service manual i have for an 88 its a gray wire that comes from the horn to the firewall so thats the wire you want to look for and test before you splice into it