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BasicsCar AudioCar SecurityCruise ControlsDiodesDoor LocksOhm's LawPassive CrossoversRelaysResistorsSubwoofer Enclosures Search
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
Application GuideCalculators, Charts, DiagramsDownloads/ManualsFind InstallersForumsGlossarySubwoofer WiringToolsVehicle Wiring Recent Topics
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Diodes
Glossary of Terms
Ohm's Law
Relays
Resistors
Tools and Equipment
Wire Sizes
Introduction
Parallel & Series Calcs
Passive Crossovers
Port Length Calculators
Subwoofer Box Calculators
Subwoofer Enclosure Types
Subwoofer Wiring Wizard
Thiele - Small Parameters
Miscellaneous
Relay Diagrams
Vehicle Wiring Database
Introduction
Alarm Accessories
Alarm Modules
Alarm Sensors
Basic Connections
Illuminated Entry
Light Flash
Power Door Locks
Starter Interrupts
Installation Pictorials
Relay Diagrams
Vehicle Wiring Database
Introduction
Electrical Connections
Mechanical Connections
Servo Settings
VSS and Tach Info
Vehicle Wiring Databse
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Buy & Sell Equipment
Car Audio
Car Audio Hot Topics
Car Security & Convenience
Car Security Hot Topics
Car Security Pictorials
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Cruise Controls
Employment
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General Discussion
Lights, Neon, LEDs, HIDs
Marine Electronics
Miscellaneous
Mobile Video & Navigation
Motorcycle Electronics
Music, Favorite Songs
Relays
Rides & Systems Gallery
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Recent Forum Topics
Forum Help & How To
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Charts
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Index of Calculators, Charts, and Diagrams

SPDT relay SPDT relayAs I continue working on this site, I'll draw more diagrams and create more charts and calculators as needed and list them on this page. Additional information can be found in our Vehicle Wiring Database, Members' Downloads Section, and our forum, the12volt's install bay. Please do not email requests for information.
...the12volt  


Disclaimer: *All information on this site is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.
Browse by category:
Basics
Calculators
Car Stereo, Power and Speaker Wiring
Cruise Controls
Door Locks & Window Modules
Light Flash & Illuminated Entry
Metra Application Guides
Passive Crossovers
Starter Interrupts
Subwoofer Enclosures and Wiring
Forum Stickys
Miscellaneous

Popular Sections:
Alarm/Remote Starter Pictorials
Member Downloads
Relay Diagrams - Quick Reference
the12volt's Application Guide
Vehicle Wiring Database

 
Basic Electronics
Diodes, Isolating Door Triggers and Sensors, Diodes Across the Coil of Relays
Ohm's Law, Ohm's Law Pie Chart
Ohm's Law Calculators
Relays, SPDT Relays, SPST Relays, Latching Relays
Resistors, Resistor Color Codes
Resistor Color Code Calculator

Calculators
Capacitor & Coil Calculator for 1st, 2nd, and 3rd Order Passive Crossovers
Fraction to Decimal Calculator
Narrow Band Pass Calculator for 1st, 2nd, and 3rd Order Passive Crossovers
Ohm's Law - Current Calculators
Ohm's Law - Power Calculators
Ohm's Law - Resistance Calculators
Ohm's Law - Voltage Calculators
Parallel Calculator
Port Length Calculator (round)
Port Length Calculator (slot)
Resistor Color Code Calculator
Series Calculator
Subwoofer Wiring Wizard for 1 ohm DVC, 2 ohm DVC, 4 ohm DVC, 4 ohm SVC, 6 ohm DVC, and 8 ohm SVC Speakers
Volume Calculator - Rectangular/Square Enclosures
Volume Calculator - Tube/Cylinder Enclosures
Volume Calculator - Wedge Enclosures 1
Volume Calculator - Wedge Enclosures 2
Zobel Calculator for Passive Crossovers

Car Stereo, Power and Speaker Wiring
American Wire Gauge Sizes
Connecting Additional Devices to the Remote Turn On Wire Relay Diagram
Power and Ground Cable Sizes
Radio On Until Door Opened Relay Diagram
Stereo to Bridged Mono Switched Outputs Relay Diagram
Subwoofer Wiring Wizard for 1 ohm DVC, 2 ohm DVC, 4 ohm DVC, 4 ohm SVC, 6 ohm DVC, and 8 ohm SVC Speakers
Switching from Series to Parallel and Back Relay Diagram
Switching from Stereo to Bridged Mono & Series to Parallel and Back Relay Diagram
Typical Head Unit Wire Harness
Also see: Relay Diagrams - Quick Reference

Cruise Controls
Micro Cruise Switch Settings
Rostra's VSS & Tach Info

Door Locks & Window Modules
3 Wire Positive Door Locks Relay Diagram
4 Wire Reversal Door Locks Relay Diagram
5 Wire Alternating 12 Volts Positive Door Locks Relay Diagram
Actuators / Reverse Polarity Relay Diagram
Add Auto Lock without an Alarm or Keyless Entry System Relay Diagram
Add Auto Unlock without an Alarm or Keyless Entry System Relay Diagram
Dodge Caravan Single Wire Lock/Unlock with Resistors Diagram
Double Ground Pulse Relay Diagram
Ford Probe Single Wire Lock/Unlock with Resistor Relay Diagram
Nissan 1991 - 1995 option 1 Single Wire Lock/Unlock Relay Diagram
Nissan 1991 - 1995 option 2 Single Wire Lock/Unlock Relay Diagram
Nissan Maxima 1995 - 1997 Door Locks Relay Diagram
Single Pulse to Lock and Unlock Relay Diagram
Toyota with Child Safety Door Lock System Relay Diagram
Vacuum Type Door Locks Relay Diagram
Window Module / 2 Up or Down
Also see: Relay Diagrams - Quick Reference

Light Flash & Illuminated Entry
Adding Light Flash with Siren Output Relay Diagram
Basic Light Flash Relay Diagram
Illuminated Entry for Vehicles with Negative Door Triggers Relay Diagram
Illuminated Entry for Vehicles with Positive Door Triggers Relay Diagram
Two Wire Light Flash Relay Diagram
Also see: Relay Diagrams - Quick Reference

Metra Application Guides
2001 Metra Application Guide
2002 Metra Application Guide
2003 Metra Application Guide
2004 Metra Application Guide
2005 Metra Application Guide
2006 Metra Application Guide
2007 Metra Application Guide
2014 Metra Application Guide
The Application Guide - Dozens of application guides one!

Passive Crossovers
2 Ohm Charts
4 Ohm Charts
8 Ohm Charts
Capacitor & Coil Calculator
First Order Low Pass
First Order High Pass
First Order Band Pass
First Order Narrow Band Pass
Narrow Band Pass Calculator
Second Order Low Pass
Second Order High Pass
Second Order Band Pass
Second Order Narrow Band Pass
Third Order Low Pass
Third Order High Pass
Third Order Band Pass
Third Order Narrow Band Pass
Zobel
Zobel Calculator

Starter Interrupts
Normally Closed Starter Kill Relay Diagram
Normally Open Starter Kill Relay Diagram
Passive Starter Kill Relay Diagrams 1, 2, & 3
Also see: Relay Diagrams - Quick Reference

Subwoofer Enclosures and Wiring
Second Order / Infinite Baffle / Free Air
    Typical Rear Deck Installation/Infinite Baffle/Free
    Back Seat Installation
    Small Deck Installation
Second Order/Acoustic Suspension/Sealed Enclosures
    Sealed
    Isobaric - Sealed
    Isobaric - Sealed (Compound Loading)
    Isobaric - Sealed (Back to Back)
    Isobaric - Sealed (Planar Loading)
Fourth Order / Bass Reflex & Bandpass Enclosures
    Fourth Order / Bass Reflex
    Isobaric - Bass Reflex
    Isobaric - Bass Reflex (Compound Loading)
    Bass Reflex - Passive Radiator
    Isobaric Bass Reflex - Passive Radiator
    Single Reflex - Band Pass
    Isobaric Single Reflex Bandpass
    Three Chamber Single Reflex Bandpass
    Isobaric Three Chamber Single Reflex Bandpass
Sixth Order Enclosures
    Quasi Sixth Order Series-Tuned Bandpass
    Isobaric Quasi Sixth Order Series-Tuned Bandpass
    Dual Reflex Bandpass
    Isobaric Dual Reflex Bandpass
    Three Chamber Dual Reflex Bandpass
    Isobaric Three Chamber Dual Reflex Bandpass
Eighth Order Enclosures
    Quasi Eighth Order Series-Tuned Dual Reflex Bandpass
    Isobaric Quasi Eighth Order Series-Tuned Dual Reflex Bandpass
    Eighth Order Triple Reflex Bandpass
    Isobaric Eighth Order Triple Reflex Bandpass
Parallel, Series, Port Length, & Volume Calculators
Subwoofer Wiring Wizard and Diagrams
Thiele - Small Parameters

Forum Stickys
Car Audio:
 How to wire through a door molex.
 How to Set Your Gains
 What is a proper sub box?
 Running one vc on a dvc sub
 How to choose an amplifier.
 Fuses or curcuit breakers?
 Ground Q/A sticky
 Guide: Using WinISD
 Comprehensive front stage setup
 Too Little Power
 How to choose a car CD receiver.
 How to upgrade the Big Three
 How to achieve awesome mid bass
 Fuse size?
 Ohms, using resistors with woofers?
 Advanced front speaker systems how-to
 How to identify stereo wiring.
 What is a proper ground?

Car Security & Convenience:
 new ford 80 bit cracked
 idatalink can do ford with 1 key
 Why anti grind/starter cut relays drain batteries.
 Rookies and all seeking advice.
 Fortin Bypasses/Interfaces Updates 3/11
 bypass for 2010 tundra
 idatalink cracked hyundai kia
 Viper 5902 vs 7901?
 DEI 528t, siren delay
 Key immobilizers and remote starting
 Tach wire general comments
 What?s the reason to diode isolate?
 How to test for wait to start wire.

Fiberglass, Fabrication & Interiors:
 Tinting Clear Plastic
 How to Make a Fiberglass Enclosure
 Flushing a remote, fun little project
 Fiberglass, Roush Mustang
 Fiberglass shopping list
 How to make circular rings
 Sticky Packing peanut volume measurement

General Discussion:
 gentex 261 mirror repair
 Magnuson-Moss Warranty Act
 GM RAP (retained accessory power)
 Wholesale Distributors?
 Topics
 How to Solder, beginners guide
 Butt Connectors or Solder?
 Do you solder or tape your connections?

Lights, Neon, LEDs, HIDs:
 Fog Light buzzer
 LEDs in a row
 LED tail light conversion
 LED in my ashtray, resistor size?
 Flashing LED

Mobile Video and Navigation:
 Video In Motion Law
 Headrest how-to, 06 Chrysler 300c
 Headrest Monitor How To, 91 Accord

Music, Favorite Songs, Movies, Videos, Test CD's:
 Good songs for bass?

Relays:
 Radio on until door open + trigger
 Add auto lock,unlock to Excursion,F250
 Regarding All Relay Questions

Vehicle Information Requests:
 Vehicle Wiring Information from 1967 and up

Rides and Systems Gallery:
 Focal Beryllium BMW
Focal Beryllium BMW

Miscellaneous
 (* links to our old forum will open in a new window)
American Wire Gauge Sizes
Basic Remote Start Relay Diagram
Converting Polarity (Negative to Positive, Postive to Negative) Relay Diagrams
Constant to Momentary Output Relay Diagram
Dual Stage Sensor to Standard Alarm
Isolating 2 Triggers with Diodes
Latched On/Off Output Using a Single Momentary Pulse Relay Diagram
Momentary to Constant Output Relay Diagram
One Channel to Multiple Outputs Relay Diagram
Pulsed to Steady On Output Relay Diagram
Radio On Until Door Opened Relay Diagrams
Waking Up BCM - 1996 Chevy Camaro*


Additional information has been posted in our forums.

To get the information not posted here, please post your request in our forums, the12volt's install bay. Please do not email your requests. We will not respond to any requests by email.






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BasicsCar AudioCar SecurityCruise ControlsDiodesDoor LocksOhm's LawPassive CrossoversRelaysResistorsSubwoofer Enclosures Search
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
Application GuideCalculators, Charts, DiagramsDownloads/ManualsFind InstallersForumsGlossarySubwoofer WiringToolsVehicle Wiring Recent Topics
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