Best External Speaker is Vehicle Speaker Use External Speaker Wizard

for CB/HAM - All Two-Way Radios

The External Speaker Wizard (WIZ) functionally turns your left front vehicle speaker into a high quality external speaker


External Speaker Wizard



The Wiz is an effective 2-way radio voice-activated left front speaker switch and left front stereo output mute device that allows seamless and fully automatic interaction between the vehicle stereo and a scanner or other radio receiving device equipped with a mono 1/8” (3.5mm) speaker output jack such as on a GPS, CB, FRS, GMRS, VHF, UHF, Ham Radio or Radar Detector.

The Size is about the dimensions of a deck of playing cards 3”x2”x 0.9” in an encapsulated enclosure with a 90 degree mono 3.5mm plug on a 12 foot cord. The best placement of the WIZ is between the stereo and speaker and is mounted under or behind the dash out of sight.

How it works:  When voice is present (volume, set at a pleasant listening level) on a 2 way-radio, the left front stereo output will automatically mute and the left front speaker will switch to 2 way radio voice thus acting as a high-quality external speaker. All other speakers remain unchanged playing and connected to the stereo. The left front speaker remains switched for 3 seconds after the last voice message is received, then returns back automatically to normal stereo play.

The List Price of $39.95 is cost effective and about the same price as a good quality external mount speaker box, but without the concern of size, mount location and sound quality. Factory vehicle speakers are designed for the acoustics of the vehicle and are usually rated at 20 watts or greater making a world of difference as to how well you hear.

See Wiring Diagram

Price: $39.95


Customer Testimonial

The Wiz

"Took just over a week delivery time from the US to Canada.

Connected it to the radio in my wife’s car.

Plays through the driver’s door speaker.

What I like about The WIZ is that while I am driving her car I can now hear my ham radio with clarity that it has never exhibited before. At the same time, my wife can listen to her favourite music or book tapes uninterrupted. Neither one of us has to struggle to hear what we each want to hear.  Regular car radio audio comes from all 4 door speakers until audio comes through my ham radio.  Instantly the audio from my ham radio is the only thing heard out of the left door speaker and is clean clear, and right beside me. The three other speakers continue to play the car radio audio.  Then three seconds after the voice message on my ham radio is finished in the left door speaker the car radio cleanly returns to that speaker.   

The audio is so good that I can keep my ham radio at a lower volume and my wife doesn’t have to turn up the car radio to an unreasonable level to hear it above my ham radio.  It’s a win, win.  

I am very pleased with the ease of installation.  I just had to expose the wires at the back of the radio. I quickly looked on the internet to see which pair of wires were for the driver’s door speaker and wired them to the Wiz.  The instructions provided came complete with diagrams and an explanation of how to hook the Wiz up. It’s quick, easy, and sounds great. I’ve wanted something like this for years and finally found it made by Rogus Innovations at Very solid construction; great product!" T.Black


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