Quote:
Originally Posted by Doghouse
Looks like I need to 're-do' this mod and simply go with the stock wiring and a 10 A fuse.
|
You need to re-do it, but not necessarily use the stock wiring - at least all of it.
By using the post under the access panel, it sounds like you have an Exige - they have a battery connection under the access point to allow jumping the car (so you can open the doors with a dead battery, since you need to open the doors to pull the engine cover release).
A better setup to use would be to use a relay in the circuit. Use the stock horn wire to trigger the relay and connect the other trigger terminal to ground. Then run the heavy gauge stranded wire from the post to the switched terminal of the relay. Make sure you install an in-line fuse very close to the connection at the post. Run the other switched terminal to the horn. Run the other terminal from the horn to ground.
By using the power sourced from the post, and a relay, you can deliver full power to the horn, and not worry about over-heating the stock wiring.
If only it was as easy to source power in an Elise...