I purchased a 1998 tr-17 a month or so ago and noticed when the low oil light came on there was no beep at all. I grounded the heat sensor on the back of the motor and the overheat light came on(with no beep or anything)..... I bought a new horn thinking that was it, but dident change a thing. The only time I hear a been is when I turn the key to the on position. The lights light up but the horn makes no noise. I think it might be a ground wire but not sure. Any ideas?