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Old 10-27-2007, 01:17 AM
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Viet Nam Vette Viet Nam Vette is offline
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Join Date: Oct 2005
Location: Atlantic City NJ
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Default Re: Easy horn upgrade!

I Put these cheapies on my 3. They work great.
http://www.jcwhitney.com/autoparts/ItemBrowse?storeId=10101&Pr=p_CATENTRY_ID%3A100000 217813&productId=100000217813&catalogId=10101&lang Id=-1&rlid=group_listing

You can also find the same type on Fleabay. I paid $14.95 plus shipping from an ebay sale.

On thing you should do is not wire them to the exsisting H3 wiring. The wire gauge is very small, 22 awg I think. The H3's horn is a low current horn. I chopped off the plug at the horn connector and wired in a relay in it's place to carry the higher current load.

Use a 14 awg wire from the battery in the horn power relay contact circuit to be safe.

Don't forget an in line fuse. I used a 20 Amp in line fuse and holder.

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