JL Audio MediaMaster 105 MM105 Marine Stereo, NMEA 2000, IP67, 4-Zone, 3.5in Full-Color LCD

Overview

The JL Audio 010-03132-00 is a MediaMaster 105 marine source unit with a 3.5-inch TFT color display (320 x 480) and four independent audio zones for boats that run separate amps and speaker groups.

It operates on 12V negative-ground systems with an allowable input of 10 to 15.9 VDC and uses a 5A fuse. Each zone provides low-voltage RCA outputs, with a stereo pair plus a mono subwoofer output per zone, so it feeds external marine amplifiers instead of driving speakers directly.

For planning fit behind the dash, the chassis measures 5.94 in x 3.90 in x 3.94 in (151 mm x 99 mm x 100 mm) with a mounting hole of 4.72 in x 3.25 in (120 mm x 83 mm). The front is rated IP67 for wet helm installs, but it should not be submerged or subjected to high-pressure spray.

Key features

• 12V-only power requirement (10 to 15.9 VDC allowable) for negative-ground systems, with a 5A fuse and 1.5A maximum current draw
• Four-zone, 12-channel preamp output layout: a stereo pair plus mono subwoofer RCA outputs for each zone
• Output modes per zone include Relative, Absolute, Fixed, or Off, with Fixed level options of 4V, 2V, or 1V RMS
• NMEA 2000 connection with LEN 1 using a Micro-C connector for network integration with compatible controllers and displays
• Bluetooth audio streaming with Qualcomm aptX support, up to 35 ft (11 m) range, and pairing for up to 8 devices
• Dual USB ports for media playback: USB 1 supports iPhone or USB storage with 2.1A charging, USB 2 supports USB storage with 500 mA output
• Two stereo RCA AUX inputs with selectable 2V or 1V RMS input sensitivity
• AM/FM tuner with RDS support, plus DAB+ tuning capability; SiriusXM support with a SiriusXM Connect tuner (sold separately)

Installation and wiring

Mount it in a location that stays ventilated and protected from direct, heavy spray. Power is a switched +12V feed (red) and ground (black), with the 5A fuse placed at the power connection point. There is also a +12V illumination input (orange) for tying into your dash lighting, and an amplifier remote turn-on output (blue) for triggering external amps.

On 24V boats, plan on a proper DC-DC conversion to a stable 12V supply before this unit. If your boat sees voltage sag at start-up or when heavy loads kick on, the built-in low-voltage alert behavior is a useful reminder to check battery condition, cabling, and charging system health.

Audio system planning

This layout works well when your boat has separate listening areas that need different volume levels, like cockpit and cabin, or a tower and the main deck. Since each zone has its own RCA outputs, you can route signals cleanly to multiple amplifiers and keep wiring tidy in the helm and electronics bay. Zone naming and per-zone settings help keep control straightforward once the system is tuned.

Connections and day-to-day use

Bluetooth is handy for quick playback from phones and tablets, while USB ports cover stored music and keep devices topped up. For hardwired sources, AUX 1 and AUX 2 accept standard stereo RCA inputs. If you run an NMEA 2000 backbone, the Micro-C connection makes it easy to place the stereo on the network so it can show up as a named device and integrate with compatible control options.

This unit is a good match for boaters building a multi-amp system where zone control matters, like cruisers with an interior cabin and an open cockpit, or fishing and tow boats that split speakers across helm, transom, and tower areas.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

Learn more.

Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

Learn more.

Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

Learn more.