is there a way

I am still learning myself, but if you get the correct decoder it will usually have the correct horn.
Les
 
well see the thing is thier is a show that used to come on tv called the dukes of hazzard and their is a 1996 dodge charger that has a really awesome air horn and i was wondering if i found the file with the horn could ir be uploaded to the sond decoder instead of the stock horn zachary flowe
 
According to Digitrax's website, you can upload .wav files to their decoders as part of a "sound project file" (.spj) so any sound that is saved in that format is possible - Dukes of Hazzard, lion roar, Thomas "peep-peep", or anything else you want.

Andrew