VHF-U4

Mute the Boat stereo and Hear VHF/UHF Radio Audio through Stereo Boat Speakers

VHF-U4 is a VHF/UHF radio voice activated stereo mute and speaker switching system that allows seamless interaction between the VHF radio voice message and the boat stereo speakers.

When activated the boat stereo mutes and the two front speakers switch to VHF radio voice while the rear speakers go mute. Three seconds after the last voice message is received the stereo automatically returns back to normal play.

  • No Modification to your VHF Radio, Stereo or boat is needed. Easy install less than 60 minutes for most boats. Some wiring hookup required.
  • Note: This is not Bluetooth or a FM modulator that requires the stereo to be set to a particular station in order to work.
  • Built to last water proof potting compound is used on this product to encapsulate the circuitry and cable assembly that protects against temperature change, vibration, dust and accidental immersion in sea water.
  • JIS8 rated

$89.95

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Designed and manufactured in the USA.

Download Wiring Diagram

What Our Customers Are Saying

Hi. I just installed the “Wiz” into my wife’s Grand Am and the “Audio Interrupter” and the “TDS15A” into my Mustang Convertible and wanted to share with anyone else who uses two-way radios in their car how impressed I am. 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.
T.Black
"I also purchased the Audio Interrupt for Ford 2003-2014 to connect another ham radio to my 2007 Mustang Convertible. With the roof down this car is very loud, so I wanted something that would completely mute the car radio audio when I receive messages over the ham radio. Also, I wanted to hear the ham radio through the high quality speakers in the front doors. This product does just that. Three seconds after the ham radio audio is finished the car radio audio comes back on. The ham radio audio that comes through the front door speakers has a clarity that it has never exhibited before. It sounds awesome."
T.Black
"I recently purchased and installed the VHF-U4 on my sailboat. It is a great product and works exactly as advertised. The installation instructions were about as fool proof as they could be." Three seconds after the ham radio audio is finished the car radio audio comes back on. The ham radio audio that comes through the front door speakers has a clarity that it has never exhibited before. It sounds awesome."
G. Myers
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