Running wires behind the dash
#1
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Location: Detroit Metro
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Running wires behind the dash
i feel stupid asking this but, how do you run say a 12 gauge power wire behind the dash board? i have a few switches and such that i want to power and am running them off of stock wires. But i want to add a few more things and i don't want to continue chopping wires because i don't want to mess with stock electrical obviously. (if my writing is a little hectic sorry, its almost 5 am and i'm still working on stuff for work) i have 4 gauge wiring running from the battery back to my amplifier.
Do i need to just run it from the battery to the dash or do i split from my 4 gauge wiring somewhere and if so where?
thanks guys
Do i need to just run it from the battery to the dash or do i split from my 4 gauge wiring somewhere and if so where?
thanks guys
#2
CF Senior Member
i got 3 switches in the roof mounted console. i have a switch that is located in the seat belt holster. i have a sub switch that is for the sub and 4 gauge run under the plastic on the sides to my kicker. i also have 2 gauges on the pillar. to power all this, i found a hole that i drilled out more. got some weird sticky rubber stuff from home depot and i ran wires through firewall. under dash and routed from then on. and use rubbber stuff to seal hole. i have the wires routed in the headliner to the switches up there. its always easy to tuck wires under the dash or under carpet than physically behind the dash.
#3
FYI, any time you run new power through the firewall make sure you protect it with a fuse. If it's connected to the + terminal on the battery you should have the fuse no more than 18" from the terminal. Without a fuse it could short out anywhere along it's length and cause a fire.
Also, make sure you use a rubber grommet where it goes through the firewall to stop it from shorting out there over time.
Also, make sure you use a rubber grommet where it goes through the firewall to stop it from shorting out there over time.
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