President Walker IV FCC AM/FM CB Radio + President DIGIMIKE 6-Pin Noise-Reducing Mic + DRX-9010 External Speaker Combo
President Walker IV FCC + DIGIMIKE + DRX-9010 Combo Kit — 6-Pin President Audio Upgrade
What's in this combo: President Walker IV FCC AM/FM CB Radio + President DIGIMIKE 6-Pin Noise Reducing Microphone + DRX-9010 Driver Extreme Premium External Speaker. A drop-in President audio upgrade for the Walker IV, designed around the radio's 6-pin front mic connector and built to solve the two biggest cab audio problems — engine noise going out and radio traffic getting drowned out coming in.
Who This Combo Is For
This kit is built for professional drivers running semi trucks, pickups, and heavy-duty work vehicles who want their new Walker IV FCC to sound its best out of the box. Owner-operators running Peterbilt, Kenworth, Freightliner, Volvo, Mack, and International trucks will find the Walker IV drops cleanly into factory truck radio cutouts, while the DIGIMIKE handles noise reduction on the transmit side and the DRX-9010 wedge speaker makes incoming traffic intelligible over diesel rumble, road noise, and HVAC. Because the DIGIMIKE is a President 6-pin mic, it plugs straight into the Walker IV's front jack — no adapter, no rewire, no compatibility gamble.
Why We Picked These Three Products
- The President Walker IV FCC is the newest generation of the legendary Walker line and the direct successor to the President Walker III that became a truck-CB standard. AM/FM operation on all 40 channels, NOAA weather channels with weather alert, dedicated P-Channels (P1–P5), Noise Reduction Circuit, Glow Mode adjustable backlighting, VOX hands-free operation, ASC, built-in SWR meter with SWR protection, and a front USB-C charging port.
- The President DIGIMIKE is President's own 6-pin noise-reducing mic with a 5-level NRC filter, up/down channel keys, and VOX support. It's engineered specifically for the President 6-pin platform (Walker IV, George, McKinley, Bill II, Thomas, Washington), so it delivers the noise-cancelling performance President's DSP was designed around — with the correct wiring.
- The DRX-9010 external speaker mounts on the dash, headliner, or A-pillar where the radio itself won't fit, tuned for voice frequencies (150 Hz–6 kHz) so voice cuts through diesel rumble and cab noise at highway volume.
Buying these three separately means verifying the mic pin format, checking that the speaker jack matches, and making sure the audio profiles complement each other. We've already done that work. Everything here plugs in and works.
What's Included
| Component | Part Number | What It Does |
|---|---|---|
| CB Radio | President Walker IV FCC | 40-channel AM/FM · NOAA weather · NRC · Glow Mode · USB-C · VOX · P1–P5 |
| 6-Pin Noise-Reducing Mic | DIGIMIKE | President 6-pin dynamic mic · 5-level NRC · UP/DOWN keys · VOX support |
| External Speaker | DRX-9010 | 15W wedge speaker, voice-tuned 150 Hz–6 kHz |
Also included: Walker IV FCC ships with its stock hand mic, power cord, mounting bracket, and mic clip. DIGIMIKE ships with a coiled cord. DRX-9010 ships with a 10-foot speaker cable and a heavy-duty mounting bracket.
President Walker IV FCC CB Radio
The President Walker IV FCC is the newest generation of the Walker line and the direct successor to the popular President Walker III. It keeps the classic OEM truck-CB form factor that fits cleanly in factory truck cubbies, radio cutouts, and overhead compartments across Peterbilt, Kenworth, Freightliner, Volvo, Mack, and International semi trucks. The Walker IV adds a modern feature set built for today's road: AM/FM operation on all 40 channels so you reach drivers running newer FM CB radios, NOAA weather channels with weather alert for storm country and mountain-pass driving, and a front USB-C charging port so your phone stays powered on the dash.
Key features: 40-channel AM/FM · NOAA weather channels with weather alert · Glow Mode adjustable backlighting · Noise Reduction Circuit (NRC) DSP filter · 5 dedicated P-Channels (P1–P5, one-touch channel access) · Automatic Squelch Control (ASC) · VOX hands-free operation · Built-in SWR meter · SWR protection · Front USB-C charging port · 6-pin electret front mic connector · OEM truck size — fits factory cubbies and overhead compartments.
President DIGIMIKE 6-Pin Noise Reducing Microphone
The DIGIMIKE is President's own noise-reducing hand mic built on the 6-pin President wiring standard the Walker IV FCC uses. Its 5-level Noise Reduction Circuit filter lets you dial in exactly the amount of ambient rejection your cab needs — a lower setting for quiet highway driving, a higher setting when you're on the shoulder next to a running diesel. Up/Down channel keys mean you don't have to reach for the radio to change channels, and VOX mode lets you talk hands-free without pressing PTT. Because it's wired 6-pin from the factory, the DIGIMIKE plugs straight into the Walker IV's front jack — no adapter cable required.
Specifications: 6-pin President wiring · 5-level Noise Reduction Circuit (NRC) · UP/DOWN channel keys · Push-to-Talk (PTT) · VOX mode compatible.
DRX-9010 Driver Extreme Premium External Speaker
The DRX-9010 is a wedge-shape external CB speaker designed for tight mounting locations in trucks — under the dash, above the visor, or against the A-pillar. It handles 15 watts nominal and is tuned specifically for voice reproduction, so radio traffic comes through clean and intelligible even at highway speeds.
Specifications: Wedge shape · Heavy-duty bracket included · Detachable 10 ft. 20-gauge twisted pair cable · 15W nominal · 6 ohms · 150 Hz–6 kHz linear voice-tuned response · Operating -4°F to +140°F · 3.5mm straight-to-right-angle plug · 5.0″ W × 4.5″ D × 4.75″ H · 2 lbs. 5 oz. Compatible with any CB radio with a 3.5mm external speaker jack.
Available upgrades and options
- Pro Tune & Alignment. Don't forget to add the Pro tune and alignment option at checkout so that your radio is professionally bench-tuned for best performance per the manufacturer's service manual.
Other Walker IV FCC Kits
- Walker IV FCC — radio only
- Walker IV FCC + BT Mike Bluetooth Combo — hands-free Bluetooth mic for hands-free-law states
- Walker IV FCC + SR-A10 Antenna Install Combo — full trucker antenna install kit
Frequently Asked Questions
What's included in this Walker IV FCC + DIGIMIKE + DRX-9010 combo?
This combo includes three products: the President Walker IV FCC 40-channel AM/FM CB radio, the President DIGIMIKE 6-pin noise-reducing microphone, and the DRX-9010 Driver Extreme Premium External Speaker with mounting bracket and 10-foot cable. All three are pre-verified to work together out of the box.
Is the DIGIMIKE compatible with the Walker IV FCC?
Yes — this is exactly what the DIGIMIKE was designed for. The Walker IV FCC uses a 6-pin front mic connector (the President standard), and the DIGIMIKE is wired 6-pin from the factory. No adapter cable, no rewire — it plugs straight into the front of the radio.
Why not use a 4-pin Cobra-wired mic instead?
The Walker IV FCC has a 6-pin, not 4-pin, mic connector. A standard 4-pin Cobra-wired microphone will not work directly — it needs a 4-to-6-pin adapter cable and does not use the up/down channel keys or NRC integration the Walker IV was designed around. Sticking with a President 6-pin mic like the DIGIMIKE keeps everything working the way President engineered it.
How is the Walker IV different from the Walker III?
The Walker IV keeps the classic Walker sound, layout, and OEM truck form factor drivers know, and adds AM/FM operation on all 40 channels, Glow Mode adjustable backlighting, a Noise Reduction Circuit for voice audio, 5 dedicated P-Channels (P1–P5), SWR protection, Automatic Squelch Control, VOX hands-free operation, a front USB-C charging port, and NOAA weather channels with weather alert. Same fit, more capability. See the Walker III for reference.
Is this combo good for truck drivers?
Yes — that's exactly who we built this kit for. The Walker IV FCC fits standard truck radio cutouts in Peterbilt, Kenworth, Freightliner, Volvo, Mack, and International cabs, the DIGIMIKE's 5-level NRC handles engine, HVAC, and wind noise on the transmit side, and the DRX-9010 wedge speaker mounts in tight cab locations where the radio itself won't fit.
What does "5-level NRC" on the DIGIMIKE do?
NRC (Noise Reduction Circuit) is a filter built into the mic that suppresses background noise before your voice is transmitted. Five levels means you can dial in more or less filtering depending on your environment — a quiet cab on a highway needs less, an idling truck at a truck stop needs more. Combined with the Walker IV FCC's own onboard NRC, you get two stages of noise reduction working together.
Is the DRX-9010 external speaker good for a truck cab?
Yes. The DRX-9010 is one of our top external speaker picks for truckers because of its wedge shape (mounts in tight spots), voice-tuned 150 Hz–6 kHz frequency response, and 15-watt handling that stays clean at highway volume. Its -4°F to +140°F operating range handles seasonal cab extremes.
Does the DRX-9010 speaker work with other radios?
Yes. The DRX-9010 uses a standard 3.5mm external speaker jack and works with any CB radio or amateur radio that has an external speaker output.
Can I buy the radio, mic, and speaker separately?
Yes, each component can be purchased individually at CB Radio Supply. The advantage of the combo is that we've pre-verified the DIGIMIKE's 6-pin wiring matches the Walker IV's mic jack and the DRX-9010's audio profile complements the radio's output — you don't have to research pin formats, jack types, or frequency response curves yourself.
What antenna do I need for this combo?
This kit does not include an antenna. For a truck install with a permanent mount, we recommend the Stryker SR-A10 antenna. For a magnet-mount install, the Stryker SR-A10MM is our go-to. Want the full trucker antenna install kit included? See the Walker IV FCC + SR-A10 antenna install combo.
Does this combo ship free?
Yes. This combo ships free to the United States lower 48 and DC.
Where to Buy the Walker IV FCC + DIGIMIKE + DRX-9010 Combo
Order the Walker IV FCC + DIGIMIKE + DRX-9010 audio combo at CB Radio Supply. Ships free to the United States lower 48 and DC. Every combo is inspected before it leaves our shop. Questions? Contact us.