Help Please!!!!!!!
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Upfitter switch wires under passenger dash, pass through wires from upfitter to under hood pass side, connect to those. Depending on the amperage you need, switches have some differences, 5 and 6 are 40 amp, they are all relayed and fused.
If you don't have upfitters, then well, you have more wiring to do....
If you don't have upfitters, then well, you have more wiring to do....
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
You can use a fuse tap, to access a circuit, but be careful not to tap something sensitive electronically like engine or trans or controls or something important like headlights. Ideally 12 v feed to t he charger plugs in the cab, least potential issues.
Posting Guru
Joined: Jun 2014
Posts: 959
Likes: 10
From: Medford, OR
Except that they're not really a "keyed source." Yes, they turn on with the key, but they stay on for quite some time after the key is off.
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
It won't make much of a difference, it's minutes that some circuits remain on, vs hours, in order to protect the batteries. Best way to do this is to use upfitter switches for the appropriate size circuit. Personally not a fan of fuse taps, but for something small, with a low load, an accessory circuit would work. OP doesn't mention their plans so it's hard to give advice.
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Liquid10Rider
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