Installing A Radio In Your Jon Boat: A Step-By-Step Guide

A radio is a great addition to a Jon boat, whether you're using it for fishing, hunting, or leisure. When installing a radio, it's important to consider the wiring, especially if you're replacing an old stereo. If you're using the same brand, you can simply plug the new stereo into the existing wiring harness. However, if you're switching brands, you'll need to splice the wires, which can be done by matching the colour-coded wires. The ground wire is typically black and connects to the negative terminal on your battery, while the yellow wire is the positive power wire. Make sure to also connect the red switched power wire to your boat's ignition so that the stereo turns off when you turn off the boat. When fitting the stereo, use a bendable metal strap to support the back of the stereo and follow the instructions provided by the manufacturer for attaching the front to the dash.

Wiring a radio into a jon boat

Step 1: Plan the Radio System

Before you begin, it is important to decide on the type of radio system you want to install. This could be a simple radio receiver or a more complex setup with additional features like Bluetooth, USB ports, or SiriusXM capabilities. Additionally, consider the number of speakers you want to connect to the radio. Most stereos support up to four speakers, and each speaker will require a positive and negative wire connection.

Step 2: Gather the Necessary Tools and Materials

To complete the wiring process, you will need a range of tools and materials, including a marine stereo, wires (speaker wires, ground wire, positive power wire, switched power wire, etc.), a fuse or circuit breaker, a fuse holder, a battery, a mounting sleeve or screws, and a wiring diagram. You can refer to the wiring diagram to identify the correct wires for splicing and connecting.

Step 3: Connect the Battery and Fuses

Ensure you have a battery installed in your Jon boat. The battery will serve as the power source for your radio system. Connect the ground wire (usually black) to the negative terminal on the battery. Then, connect the positive power wire (often yellow) to the positive terminal. It is recommended to install a fuse or circuit breaker in the positive wire to protect against overcurrent situations.

Step 4: Connect the Switched Power Wire

The switched power wire (typically red) is essential for turning the radio on and off. Connect this wire to the boat's ignition or a power source that corresponds with the boat's power. This ensures that the radio turns off when you shut down the boat, conserving battery power.

Step 5: Connect the Speakers

As mentioned, most stereos support up to four speakers. Connect the positive and negative wires from each speaker to the corresponding wires on the stereo's wiring harness. Ensure that the colours match to avoid confusion. Securely fasten the speakers in your desired locations, following the manufacturer's instructions.

Step 6: Mount the Stereo

The back of the stereo is usually supported by a bendable metal strap that bolts into the chassis. Push the bolt through the hole in the strap and twist on a nut to secure it in place. For the front of the stereo, you can use screws or a mounting sleeve, depending on the model. Follow the instructions provided by the manufacturer for a secure installation.

Step 7: Test the Radio

Once you have completed the wiring and installation process, it is time to test your new radio. Turn on the boat's power and ensure the radio is receiving power. Adjust the volume and test each speaker to confirm they are all functioning correctly. Familiarize yourself with the radio's controls and settings to get the most out of your new audio system.

Remember to consult a professional or a detailed guide if you encounter any challenges during the installation process. Working with electrical systems can be complex, so it is essential to prioritize safety and accuracy.

Removing an old marine stereo

To remove an old marine stereo, you will need to first identify the type of stereo you have, as there are several different styles of marine stereos, each with different installation procedures.

If you have access to the installation manual for your stereo, this will be helpful. You can follow the installation instructions in reverse to remove the stereo. If you don't have the manual, you can try to find an electronic version online or contact the manufacturer directly to request a copy.

Waterproof stereos often have larger faceplates with screw covers. To remove these stereos, you will need to pop off the screw covers to access the screws that attach the stereo to the dash. Other waterproof stereos may have a faceplate that folds down, revealing the screws behind it.

Some smaller waterproof stereos may be attached with a U-bracket and bolts from the back. To remove these, you will need rear access to the dash or panel where they are installed. Unscrew the bolts and remove the bracket to loosen the stereo.

Standard DIN stereos typically have smaller faceplates without any accessible screws from the front. These stereos usually have a mounting sleeve that cradles the stereo behind the dash and holds it in place with bendable metal tabs. There may be a plastic trim piece around the faceplate that can be removed by applying a little pressure.

To release the stereo from the mounting sleeve, you may need a special metal key that slides between the stereo and the sleeve. If you don't have the key, you can use a narrow putty knife or a similar tool to flatten the metal tabs holding the stereo in place. Once the tabs are flattened, the stereo should slide out.

After removing the stereo from the mounting sleeve, you may find that it is still attached by a bendable metal strap at the back. You will need to pull with a little force to remove the nut and free the chassis from the strap.

Finally, you will need to disconnect the wiring harness and any other wires, such as the AM/FM antenna wire, wired remote controls, USB ports, iPod plugs, or satellite receivers.

Splicing wires for a new stereo

Understanding Wire Colors and Connections:

Before you begin splicing, it's crucial to understand the different wire colors and their functions. The wiring harness for your stereo will typically include several colored wires:

• Black wire: This is the ground wire and connects to the negative terminal on your battery.
• Yellow wire: The yellow wire is the positive power wire and should be connected to the positive terminal on your battery.
• Red wire: This is a switched power wire, often connected to the boat's ignition. It ensures that the stereo turns off when you turn off the boat.
• Blue wire: The blue wire is a control wire. If you're using an amplifier or an external device that requires power, you can connect it to the switched wire on that device.

Splicing the Wires:

Now, let's get into the splicing process:

• Cut and strip the wires: Use appropriate tools, such as wire cutters or wire strippers, to cut and strip the wires. You'll need to expose about a quarter to half an inch of the copper wire.
• Match and connect the wires: Match the wires by color and connect them accordingly. Twist the exposed wire ends together to ensure a good connection. For example, twist the black wire from the new stereo with the black wire from the boat's wiring harness.
• Use crimp connectors or solder: To secure the connections, you can use crimp connectors or solder the wires together. Crimp connectors are widely available, affordable, and easy to use. Simply slide the bare wire ends into the crimp connector and use a crimping tool to firmly squeeze the connector shut. Alternatively, you can solder the wires together using a soldering iron and solder.
• Apply heat shrink tubing or electrical tape: If you're using crimp connectors, apply heat (with a heat gun, blow dryer, or carefully with a lighter) to shrink the connectors and create a protective seal. If soldering, cover the connections with electrical tape to insulate and protect them.

Testing and Final Connections:

• Test the connections: Before finalizing the installation, test the connections to ensure they are secure and functioning properly. You can use a battery or a similar power source to test the electrical connections.
• Connect the speakers: Once the wires are spliced and secured, connect the speakers to the stereo receiver or amplifier.
• Mount the stereo: Follow the instructions provided with your new stereo to mount it securely in your Jon boat. This typically involves attaching the stereo to the dash using screws or a mounting sleeve.

Remember to work carefully and refer to the manuals or guides provided with your stereo and boat for specific instructions. If you're unsure about any part of the process, it's always best to consult a professional or seek advice from a knowledgeable source.

Fitting a new stereo

Firstly, you'll need to decide where you want to position the stereo in your Jon boat. The most common spot is at the stern of the boat, but you can also put it in the bow or even in the middle of the boat. Once you've chosen the location, take measurements and draw up a blueprint of your proposed setup. This will give you an idea of how much space you have to work with and where you'll need to run your wires.

Next, gather the materials and tools you'll need for the installation. This includes the stereo unit itself, speakers, wiring, a power source, and any other necessary hardware. If you're replacing an old stereo, you may be able to reuse some of the existing wiring and hardware. Make sure to consult the instruction manual for your stereo to ensure you have everything you need.

Now, it's time to start the installation process. If you're replacing an old stereo, carefully remove it from the dash, being mindful of the wiring and connections. If this is a new installation, you'll need to cut holes in the dash for the stereo and speakers, following the measurements from your blueprint. Pass the wiring through the holes and connect them to the power source and the stereo unit. The wiring colours usually have a standard meaning: black for ground, yellow for positive power, red for switched power, and blue for control. Consult your stereo's manual for the specific wiring diagram.

Secure the stereo unit in place using a mounting sleeve or screws, following the instructions provided by the manufacturer. Test the stereo to ensure it's working properly and make any necessary adjustments. If you're adding speakers, connect them to the stereo and secure them in place as well. Finally, tidy up any loose wiring and ensure that everything is securely fastened before closing up the dash.

With your new stereo installed, you can now enjoy your favourite tunes while cruising on the water! Remember to perform regular maintenance and keep your stereo and speakers clean and protected from the elements to ensure their longevity.

Grounding a radio antenna

To ground a radio antenna on a Jon boat, you must first understand the concept of a ground plane. A ground plane is a crucial component of a radio system, forming the bottom half of the antenna system. It is essential for the optimal performance of your radio, reducing stray currents and minimising interference with other onboard electronics.

The first step in grounding your radio antenna is to ensure that the antenna mounting bracket is electrically connected to the hull of your Jon boat. This connection establishes a ground plane, which is necessary for the proper operation of your antenna and radio.

Next, you should consider the type of hull your boat has. If you have a steel or aluminium hull, it can serve as an excellent ground plane. However, if you have a plastic or timber boat, you may need to explore other options.

One common method for plastic or timber boats is to line a significant portion of the inside hull with copper foil and attach it to the tuner's ground connection. This acts as a counterpoise, providing a similar function to a steel or aluminium hull. This method, however, can be challenging and is ideally done during the boat's construction.

Another option is to create a direct wire connection to the sea. You can utilise bronze through-hulls, rudder posts, or even install a metal plate below the waterline, connected to a copper foil strip inside the hull. This provides a good electrical connection to the seawater, which serves as an ideal ground.

Additionally, you can explore the use of a KISS-SSB Counterpoise, which is a coil of bundled wires of varying lengths that you unroll into your bilge or another out-of-the-way place. This product is designed to provide a resonant length for the frequency you are using, ensuring that the ground current flows effectively.

Finally, it is important to note that the negative terminal of your battery also serves as a ground for your radio system. Ensure that all your electronics are properly grounded to this negative terminal to prevent any potential issues or interference.

Frequently asked questions