its really really easy to make

none came, but i've wired mine and several others up, including 4th gens.


ok, radio shack... get an electo peizo buzzer

• get an inline fuse holder.
  
• wire teh inline fuseholder w/the red(positive) wire for the buzzer.
• wire the positive wire to the parking lights wire - (fuse if your ghetto like me)
• wire the ground up to the wipers fuse/wire (again, i'm ghetto)

and bingo... it works. if its going off constantly when the car is on, then you need to check and make sure your fuses still complete a circuit (i had to thin my wires out and rewire)