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Battery main switch

Discussion in 'The Garage' started by 4x4_76, Mar 15, 2002.

  1. 4x4_76

    4x4_76 1/2 ton status

    Jul 22, 2001
    Likes Received:
    Ylämaa, Finland
    I'm re-doing my K5's electrical system 'cause of diesel swap,and going to install main switch for the battery.Question is:which wire do I install it?I remember reading somewhere that it should be on negative wire so there won't be any sparks when power is turned on/off.But then radio would clear it's memory so it needs its own ground wire.But wouldn't it ground the whole electrical system.After all,radio has steel frame,and when mounted to dash,radio frame contacts with trucks body...
    What about alarm system?
    If I install the main switch to a positive wire,then I only need memory wire for radio and power wire for alarm straight from the battery?

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