Horns
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Joined: Oct 2000
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From: NYC
As a moron who so desperately needed new horns (um, I live in manhattan, land of horn blowing) that I just slapped the hellas in without worrying about relays and such, I second the motion for someone knowledgeable to clearly express the step-by-step "best practice" wiring of new horns.
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From: The wilds of
Originally posted by mingster:
1. you run a new 12 to 14 gauge wire from the positive(+) terminal of your battery to the relay.
2. you run the original horn's wires to the relay (so that it'll honk when you need it to)
3. you run the wires to the horn.
Where does the minifuse go?
4. you ground the horns
was that correct? Did I miss anything?
1. you run a new 12 to 14 gauge wire from the positive(+) terminal of your battery to the relay.
2. you run the original horn's wires to the relay (so that it'll honk when you need it to)
3. you run the wires to the horn.
Where does the minifuse go?
4. you ground the horns
was that correct? Did I miss anything?
2. The horn instructions should also tell you what attaches to each contact on the relay. One of those contacts gets the original horn line.
3. The wires from the relay go to both horns, in parallel. To avoid splicing, I just crimped double wires into the contacts for the first horn, then ran the extra wires to the second horn. I put the in-line fuse as far upstream on the hot wire as I could. It's right by the passenger side fusebox, where my hot wire takeoff attaches.
4. Both horns and the relay need to be grounded. CoralDoc's FAQ has pictures of a groundwire stack on the right fender that worked well for me.
Good luck with your installation.
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Joined: Oct 2000
Posts: 1,140
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From: San Jose
Originally posted by Sunchild:
As a moron who so desperately needed new horns (um, I live in manhattan, land of horn blowing) that I just slapped the hellas in without worrying about relays and such, I second the motion for someone knowledgeable to clearly express the step-by-step "best practice" wiring of new horns.
As a moron who so desperately needed new horns (um, I live in manhattan, land of horn blowing) that I just slapped the hellas in without worrying about relays and such, I second the motion for someone knowledgeable to clearly express the step-by-step "best practice" wiring of new horns.
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Joined: Oct 2000
Posts: 1,140
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From: San Jose
[CODE]Car audio cable recommendations
This info in from rec.audio.car FAQ
(originally from IASCA handbook).
To determine the correct wire size for your
application,you should first determine the
maximum current flow through the cable
looking at the amplifier's fuse is a
relatively simple and conservative way to do
this). Then determine the length of the
cable that your will use, and consult the
following chart:
This info in from rec.audio.car FAQ
(originally from IASCA handbook).
To determine the correct wire size for your
application,you should first determine the
maximum current flow through the cable
looking at the amplifier's fuse is a
relatively simple and conservative way to do
this). Then determine the length of the
cable that your will use, and consult the
following chart:
Joined: Oct 2000
Posts: 9,210
Likes: 7
From: WA
Originally posted by mingster:
i just went to radio shack and got some stuff. i couldn't find a 20A relay so i got a 30A relay instead. also, i got a mini fuse holder and a 30A minifuse. would this cause problems?
i just went to radio shack and got some stuff. i couldn't find a 20A relay so i got a 30A relay instead. also, i got a mini fuse holder and a 30A minifuse. would this cause problems?