Before you begin any DIY electronics installation project in your car, it’s very important to make sure that you’ve put the perfect tools and materials together.
Assess the Circuits
If you have a wiring diagram, you can use it to help locate the wires that you need to connect your new equipment to. But, it’s nonetheless a fantastic idea to use a digital multimeter (DMM) to check you have the correct cables. With a DMM, it is possible to assess the circuit polarity and verify that the proper voltage is present.
A test lighting will also do the trick at a pinch, however tests are a little different from digital multimeters. Since evaluation lights use incandescent bulbs to indicate the presence of voltage, they put a load on the circuit. That’s not a huge deal typically, but in case you have a DMM it’s far much better to be safe than sorry.
Disconnect the Battery
Among the most crucial strategies for almost any DIY car electronics wiring project would be to disconnect the battery before you get started. The only time that the battery ought to be attached is when you’re analyzing cables to verify they have electricity or ground, or when you are testing your new equipment before you switch up everything. Leaving the battery connected as you’re wiring in new electronic equipment could result in damage to either the new device or other equipment in your vehicle, so it’s a good idea to just pull the battery cable.
When your wiring job doesn’t entail replacing the factory outlet, ensure that the current head unit doesn’t have anti-theft security that kicks in whenever the battery is disconnected. The code or reset procedure is sometimes located in the guide, but the service department at the neighborhood dealer could be able to help if it isn’t.
Use a Wire Stripper
Wires can be removed with any sharp item, but the easiest, cleanest way to find the work done is a wire stripper. With a wire stripper, it is possible to take the correct quantity of insulation each time.
Do not Use Wire Nuts
Wire nuts are good for electrical wiring inside your house, but you don’t discount the freeway at 70mph into your house, or take it down bumpy back roads. Due to the constant vibration that is generated if you push your car or truck, the tightest wire nuts will tend to loosen up over time. In an best-case scenario, that may just cause your device to quit working. In a worst-case scenario, some thing may short out.
Utilize Solder or Butt Connectors
The best way to finish any DIY wiring job in your car is using a soldering iron and electrical grade solder. If you know how to solder, and also you have the gear, there’s no better way to get the job done. A fantastic solder joint will probably stand until the daily vibration in your vehicle, and it is going to also protect the wires from oxidation.
If you do not understand how to solder, then butt connectors are another good choice. These connectors look like little plastic tubes using metal sleeves indoors. You use them stripping the cables you wish to connect, slipping the cables to the butt connector, then squeezing it with a crimping tool. This is the easiest way to cable any new electronics in your car or truck, but you will need a crimping tool to perform it correctly.
Insulate Your Wire Connections
The final, and maybe most significant, DIY wiring trick is to properly calibrate your connections. If you use butt or solder connectors, proper insulation will help make sure that your wiring job doesn’t fall apart, corrode, or brief out in a couple of years.
Heat shrink is the perfect approach to insulate wiring links, but you need to remember to lower the tube and slide it over the wires until you connect them. You may then slide it over the connection and heat it up until it creates a tight seal around the wires. Many soldering irons have specific ideas that are designed to trigger heat shrink tubing, but only placing the hint of a hot soldering iron close to the tube will frequently do the trick (just take care to not melt down the heat shrink by touching it with the soldering iron).
Electrical tape may even get the work done, but you have to be sure to use a high quality item. In the event you utilize low-quality electrical tape or other sorts of tape, then it might peel off, crack, or otherwise come apart over time.