I have been reading and reading about adding sound devises to diesels which has only confused me more therefore, I am asking for your expert advice. I have a Williams F7 that is a great runner but it has no sound. I want to be able to add something to the diesel or the dummy that will mimic a diesel idling, running, etc that changes with the motor speed, plus a horn, and a bell that activate when those buttons are pushed on my conventional transformers. Not interested in any other bells and whistles (did I really say that?). I appreciate your thoughts.
Joe