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1999 996 replacement of stock horns with hella supertones

Electrical and Electronic

Vehicle Information: Model: 911; Year: 1999; Body Type: Coupe; Total Mileage: 6200;

are there any issues insofar as fit,amperage or different wiring which i must address in order to switch my stock horns to the louder hella supertone aftermarket horn set ? The hella horns are 4 7/8" diameter and 2 11/32" thick. Can i use the stock wiring and do i need a separate grounding wire. is a 15 amp fuse adequate? have i selected the proper replacements or have you a recommended alternative? any advice would be appreciated. thanks....jerry k

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