Aug 2005
Horn Relay
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Can anybody venture a guess as to where the horn
> relay is on an 87 Avanti II.//////////

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Mine is located above the parking brake pedal. There is a Relay block 
there. Mine is a white relay in the center, the turn signal flasher
and 4-way flasher are on the right(toward front of car). Warning buzzer
on left (toward rear of car).