I want to replace the stock horns on my 1998 4Runner by 4 Cadillac horns (4 notes) using the stock connection. My question is, I need to perform some changes or only attach two Cadillac horns per each stock horn using an splitter in each out stock? I will appreciate your help. Thanks

 

pics of the Caddy horns might be helpful as far as what hooks up they have

 

These are 2 of the horns.

 

ok, as per the following diagram I have two questions:

1) the cables that connect my actual 4runner horns (the stock wires to horn) will be connected to the Relay 86 input (as per the diagram)?
2) Is necessary run another cable from the Relay 87 output to the other 2 cadillac horns or I could split one cable in 4 way?

Thanks in advance.

 

This is my other option, someone can tell me if it possible?

 

I am using 4 caddy horns, a 4 pin relay, one of the oe horn connector wires. On the other oe horn connector is an oe horn. Because I can.

https://www.yotatech.com/forums/f200...51/index6.html
Post 115 for some pics of horns. I can't find the wiring diagram any more, but I'll keep looking. Or re-do it if you really want me to.
I modified the brackets so they'd work in the stock-ish locations. For the others I was able to find holes that worked fine. The horns are heavier than stock, a little support where you bolt them would not be a bad idea.

 

Thanks for your quick response.

 

Thanks, could you re-do your diagram? I will appreciate your help.

 

Caveat emptor....especially when it's free! I am not a mechanic nor electrician, but I serve a very tasty school lunch.

I did this 6 years ago using caddy horns, repinning the gm connectors as needed. Works great.

 

Thanks, this forum need more people like you! I appreciate your help.

 

habanero, you only used one relay for all the 4 horns?

Thanks,

 

Yes, that's how I did it. You could use 2 relays if you'd rather, one for each oe horn wire, if you wanted. Just wire as shown, but with only 2 horns and 1 relay for each oe connector.

 

Thanks habanero! here I go:

 

Looks good to me other than you won't have to use a ground wire from the horns, the bolt holding each horn onto the truck is its respective ground.

You can run the relay grounds (85) as you have them, to the battery, or ground to the body, whichever suits you.

 

Thanks

 

ok, the horns arrived today, the only thing I made was a harness for each OEM wire to attach 2 Cadillac horns in each as shown in the attached diagram. Everything was perfect, the sound is spectacular, it does not compare to the factory. Really I recommend this change. Locate the speakers behind the front grille. Tomorrow I will post photos.

 

the photos of the Cadillac horns (4 notes), located behind the 4Runner grill.

 

No relay? I guess if it doesn't blow fuses it's probably OK. Might burn up the horn contacts in the steering wheel sooner?

 

Thanks for your input. Well, actually not whether it is right to do so without the relay but so far it is working well, would have to ask someone if there is no problem to assembly the horns without the relay.

 

No, the '98 4Runner has a factory horn relay on the reverse of the fuse panel by driver's knee. I can't tell from the schematic if it is separate or built into the integration relay. (I only have the Overall EWD for 1998.) But THAT is what might overload, not the switch contacts. And of course, the stock HORN circuit is fused at 15A.