the buzzer is in the "saftey hazard relay"; its behind the instrument cluster, bolted onto the firewall. Its a pain to get to, but not hard; biggest problem as I recall was not dropping the bolt into the neverneverland behind the dash.

__________________
87 300e (white/black; amg body kit)
88 300ce (red/cream; amg body kit)
93 300ce cabrio (white/blue/blue top)
93 300ce cabrio (black/grey/black top)
98 ml 320 (totaled @ 137,000 miles)
99 clk320 (black/grey/black top)