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Old 03-21-2020, 09:12 PM   #1
DonkeyyKongg
Scooby Newbie
 
Member#: 383466
Join Date: Mar 2014
Chapter/Region: BAIC
Location: norther california
Vehicle:
2004 STI
wrb

Default newbie to car wiring. trying to wire car for switches...homemade schematic included

The goal: I plan on removing my stock radio in my 04 STI to add a switch panel. and putting a new relay/fuse panel in the glove box(?). I have every intention of making this car a rally car for ARA in the future, so im slowly doing prep to it till then(<10 years?). while im at it I also plan on adding a kill switch to the car for per ARA rules. I plan on adding to the spot in front of the shifter. I also plan on installing motorcycle speakers for music in the car ( car is too loud, max volume is too quite thats the label "beats" is for in the pic) and im going to install a usb port hub for charger. 2 switches labeled spares; idk what im going to use them for yet(any suggestions?) so they are there for future use.

History: Im new to wiring cars with relays and switch panels. Ive done sub/headunit wiring and I do some electrical (DC) at work sometimes, so I have a basic idea of how to do it but im not 100% sure (please help). Ive watched a few youtube videos/ googled but am still kinda confused. Im a visual learner so I made a schematic: (plumbing diagram?) https://imgur.com/a/9yZ8d78 its not pretty, its my first time making one, be gentle


Materials:

switch buss: https://www.amazon.com/gp/product/B0...7A0YQ9B1&psc=1

fuse box: https://www.amazon.com/gp/product/B0...5XPDEZYK&psc=1

relays: https://www.amazon.com/gp/product/B0...N6HRL8BC&psc=1





Thank you in advance!
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Last edited by DonkeyyKongg; 03-21-2020 at 09:57 PM.
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Old 03-24-2020, 09:09 AM   #2
Kuntzy_
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Member#: 487907
Join Date: Jul 2018
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Old 03-25-2020, 12:50 AM   #3
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

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Production rally cars generally use a layover loom with only 8-12 wires tapped or rerouted from the main loom.

Your wiring diagram has a copy+pasted kill switch diagram for an old school mechanical switch. I'd recommend a newer solution using a latching relay or solid state device.

The accessory bus... needs work. It's not wrong, just messy. There are more efficient ways of wiring something like this.
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Old 03-26-2020, 08:16 AM   #4
DonkeyyKongg
Scooby Newbie
 
Member#: 383466
Join Date: Mar 2014
Chapter/Region: BAIC
Location: norther california
Vehicle:
2004 STI
wrb

Default

Quote:
Originally Posted by mrsaturn7085 View Post
Production rally cars generally use a layover loom with only 8-12 wires tapped or rerouted from the main loom.

Your wiring diagram has a copy+pasted kill switch diagram for an old school mechanical switch. I'd recommend a newer solution using a latching relay or solid state device.

The accessory bus... needs work. It's not wrong, just messy. There are more efficient ways of wiring something like this.
Thank you for the reply.
I havenít heard of the solid state device before, Iíve only seen the mechanical kill switches. but I do now plan on getting a solid state one.
What would be a more efficient way of wiring a switch panel for a car?
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