TA horn substitute

[Mark O'Day 23]

With TA 2335 back on the road soon I am thinking of using a louder horn. Mine has been rebuilt but really does not do the job of drawing the attention of the head-down driver texting Has anyone placed a louder horn, hidden and temporarily placed on some existing part of the car without any drilling or alterations? Any details would be appreciated. Thanks, Mark O Day Kensington, NH USA

[n.truck]

Several members of our club have installed aftermarket horns hidden below the front apron. There is plenty of room.

Some lucky members have been able to find horns whose relatively low current draw allowed them to simply reroute the wiring from the original horn.

However, the horn I located from the local, mass market parts house required additional circuitry using an in-line fuse and a "heavy duty horn relay" (Note: my TC had already been converted to positive ground, and I no longer power the original horn).

I ran a new cable with a 25 amp. in-line fuse directly from the battery (or other auxiliary current source) to one of the "coil" terminals on the horn relay, and also to one of the "switch" terminals on the relay. 

I attached the existing wire coming from the horn button to the other "coil" terminal on the relay. (Note that the horn button output goes "ground" when the button is pushed).

I ran a wire from the second "switch" terminal on the relay to a terminal on the horn, itself.

I ran a wire from the second horn terminal directly to chassis ground. Note: my horn was not internally grounded to its mounting.

I have been "saved" several times by having a loud horn. 

I hope that this was helpful. Good luck to you.

Norman

[n.truck]

I meant to say that my TC had been converted to Negative ground. Sorry for the mistake.

Norman