Kill switch wiring

[Greg Amy]

Any idea what amperage I should use?

Depends on your wire size...most cars are around 12AWG, I'm guessing? that would be a 20A fusible link. Of course, if the power wire is shorted to ground, a battery can probably put out 500A before exploding...I suggest it would be best to size the fuse for the wire you're using.

http://diyaudioprojects.com/Technica...an-Wire-Gauge/
http://www.bdfuses.com/fusesnwires.php