Moving Motorola to another car: what to check and buy
When changing a car, a serviceable radio may require a different set of connections. The power supply, the length of the track, the place of attachment and the antenna path change. Before buying accessories, it is useful to make a short statement of the old and new installation in order to save the suitable components and order the missing ones.
GM340.ru · updated 12.10.2026

Describe the device and both installations
Write down the full station model, configuration, and power. For the old installation, mark the power supply cable, microphone, external devices and antenna. For the new - the type of onboard power supply, the location of the device and the possible route of the wires. This information allows you to agree on the set before dismantling.
For the fleet, it is convenient to keep a separate line for each car. The same two-way radio model does not mean the same cable length or mounting composition. If supplies are transferred between units, keep their codes and verification status on the statement.
Comparison of Old and New Place
| What changed? | What to pass for selection |
|---|---|
| Power supply | Nomination and permissible conditions of power supply station |
| Cable route | Required length, connectors and gasket limitations |
| Mount | Photo of the location, size and composition of the existing bracket |
| External equipment | Device Models and Required Connection Functions |
| Antennae | Frequency, antenna, feeder and new location |
Transition between 12 V and 24 V
If the new machine has a different on-board network, first check the power supply radio from its documentation. The HKN4137 cable does not change the source voltage. For equipment requiring a different power supply network, a suitable conversion and load in operating modes are separately agreed upon.
The denomination of the car does not describe all the conditions at the entrance of the device. To select power supply, report the station model, consumption according to documentation and the scheme used. The source or converter is not selected by the same name and one value of the output voltage.
When you need a new HKN4137
The cable is considered for purchase if the former kit is missing, does not meet the agreed length or requires replacement based on the results of the inspection. In the GM catalog, the HKN4137 code refers to a 12V battery power supply for configuration 1–25 W. For another configuration station, the affiliation is selected separately.
Attach marking of old cable and photos of connectors and protective elements. For a new order, the full code, length and composition are recorded. Line lengthening, change of connections and installation should not be considered to be automatically included in the cable supply.
Keep the role of accessory connections
If the station is connected to an external device, write down both models and the purpose of the cable. For GM, the Motorola catalog describes HLN9457; for other series, the related family is checked. The presence of a connector on the removed machine is not a reason to connect it to any new device.
The handheld microphone is also checked separately: the full code, cord, plug and mount in the new workplace. If you need MDRMN4025, match it to the installed GM. Lack of speech transmission may require checking multiple parts of the installation; buying a new microphone does not guarantee fixing any fault.
Antenna and reception after transfer
The new location of the antenna and the cable track change the installation conditions. Before reuse, check the frequency assignment of the antenna and suitable connectors according to documentation. To request, attach a photo of the base, feeder and the intended place on the new car.
After coordinated work, it’s helpful to take voice work, power supply, and required external functions in normal car modes. Criteria are determined by the task of the workplace. Standing machine testing does not replace an agreed assessment of the installation under real-world operating conditions.
“Move [the full Motorola model] from [installation] to [new car].” Available cable, microphone and antenna attached in the statement. The new power supply and installation locations are [data]. Please indicate what to save after verification and what to buy, with full codes and composition.”
Use it for purchase. technical guide HKN4137 and complete set-up.
Order and place of receipt
To request delivery, specify the city: Novosibirsk, Nizhny Novgorod, Krasnoyarsk, Almaty or another point of Russia and Kazakhstan. Attach the full codes, the number by configuration and the receipt address. The current availability, cost, package and delivery conditions are confirmed in the quotation.
Transfer to another vehicle and keep the unit kit
When updating the fleet of equipment in the Saratov region, it is convenient to compare the old and new installation in one sheet. Separately note the portable station, microphone, antenna and external devices. For each position, it is indicated whether it remains in the previous machine, is transferred or needs to be replaced. This helps not to dismantle the part that another workplace needs.
For the service brigade in Omsk, the new installation will be coordinated with the actual car and the accepted communication organization. The correctness of the transferred station does not confirm the suitability of the previous power supply, cable length and mounting on the new machine. Before purchasing accessories, models and existing connections are fixed; after transfer, the composition of the workplace should be clear to the next shift and the next order.
Questions before ordering
Can I transfer the cable without checking from a 12V to 24V machine?
First, check the requirements of the station and the power supply scheme of the new installation. The power supply cable is not a voltage converter.
Do you need to replace all the equipment removed?
Correct suitable components can be considered for preservation after inspection. The need for new positions is fixed on the sheet.
What to attach to the transfer application?
Station nameplate, accessories codes, photos of old connections and power supply data and installation locations in the new machine.
Materials for approval of the kit
- Buy PMLN5072: a set of rear connector for MOTOTRBO
- Motorola installation kit: power supply, connector and microphone
- HLN9457, PMLN5072 and HKN4137: connector, kit and power supply
- HKN4137: Complete Cable Purchase
- How to request quotation
Manufacturer's documents: GM accessories catalog; PMLN5072A and examples of compatible products; cable cable HKN4137A. The full designations of a particular delivery are agreed separately.
The main product and positions for selection
Select a specific product in our catalog. The cable, microphone and accessory kit have different roles; accessories are agreed on the full station model and installation task.

HKN4137 power cable
HKN4137 cable from our catalog: wire, connector and fuse nodes. Length, suffix and actual set are fixed in quotation.

HLN9457 connector
Image of the accessory set HLN9457 from our card. The station and the required connection are indicated at the selection.

MDRMN4025 microphone
Handheld microphone from a card MDRMN4025. Compatibility and kit are confirmed for a specific station GM.
Request quotation: office@gm340.ru · +7 (3812) 490-00-02. Send the models, the desired number and the city of receipt.