I bought these
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2405202303&category=26455
from auto zone for 25 bucks and took them home and started installing them. I cut the factory horn out, the green and black wires were left. I connected the green to the pos. on the compressor and the black to the neg. on the compressor. I hooked up the hoses and basically it's shitty as fuck. The compressor is loud as shit, almost louder than the horn, what did i do wrong, they sure as hell aren't close to 125 decibles, did i mess up?

double check to make sure all you're connections are good. i did this too, just look to the right of the intake. and yes, it's loud!!!



later

last time i saw one of those set ups i thought that it had a constant to the battery (12v) a neg and a remote because the power from your stock horn won't be enough to power the compressor...... but i could be wrong

I have em too. They suck. Sounds pathetic. Its embarasing. dont use em.
What I WANT:
-Rear Cargo Cover
-1G Steering Wheel
-Motegi Mr7's if they were 10lbs. Lighter Each
-Eibach Pro Kit and a camber kit? (Stupid when it comes to this stuff)
-Sinsei Evo Front, Blitz Sides (the High Ones), and I'm stuck on which rear, Sparco To

yeah these are embarassing as fuck, meep meep. haha i crack myself up anyways, how the hell do i hook them up to the battery and still have them work with my horn in my steering wheel, what goes where on that black connecter?

Yeah, you need to use a relay to power the compressor. There is not enough power on the horn circuit to run the compressor. Did you get a relay with the horns? There is one listed on the parts list on ebay - you should have gotten one. It's a little black box with 4 electrical connections. Standard relays have numbers next to the posts 30, 85, 86, & 87. Corbin has a nice diagram of how to use one in his fuel pump rewire writeup. http://www.2gnt.com/www/corbin/rewire.html Wire the horn just like that, except substitute "air compressor" for "fuel pump" and also substitute "Stock fuel pump power/ground" for "Stock horn power/ground". You should end up with
87 - to Battery(with inline fuse)
86 - to stock horn power
85 - to stock horn ground
30 - to air compressor positive
Also connect the stock horn ground to the negative terminal on the compressor, and you should be all set.

EDIT: Forgot to mention. You will be able to scare people with this horn it is so loud. I love mine. Bystanders jump when I hit it....and as far as cars are concerned - it's as close to a siren as you can legally get.


95 Eclipse RS : 5 speed
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

i just bought one of those... i'm type_rs on there. kewl writeup on how to use the relay. thanks.

quit bidding dudes, i went to advanced auto parts and got them for 24 bucks. Dont hassle w/ebay and shipping etc. P.S. they're fucking loud as shit. They sound like porky's horn on his pink car thing near the end lol