Does anyone know how to make the horn not honk but maybe make a beeping sound like the tsx when you lock your car? Would prefer to keep standard alarm that is in my car. Maybe someone has already done a write up on this if so please just point me in the right direction. Thanks

 

Just push the lock button once. The second push within a few seconds of the first relocks the system and gives you an audible confirmation (honk), and isn't necessary at all.

If you insist on doing this and want to change the sound from the horn honk to a beep, I can't help you with that, other than to suggest you locate the wire from the locking system that feeds the horn relay and relocate that to an aftermarket device that delivers the sound you want.