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Radio Equipment Installation Forum - Forum for discussing how to install radio communications equipment in Mobile, Base, Command Post, EOC, etc configurations.

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Old 03-12-2018, 5:17 PM
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Default Automatic speaker switch

Has anybody use something like this? It looks like it might make things easier to setup in a small car.

Ai-AB Switcher Switches Between Two Audio Devices
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Old 03-12-2018, 5:22 PM
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I once made my own switch like their manual one. It worked pretty good.


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Old 03-12-2018, 10:52 PM
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That’s what hoping. I have a small car and not a lot of room for speakers so I was planning on installing two of the automatic switches, one connected to a scanner and ham radio and another connected to a scanner and CB radio with the transmitting radios as primary.
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Old 03-13-2018, 2:04 PM
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Thatís what hoping. I have a small car and not a lot of room for speakers so I was planning on installing two of the automatic switches, one connected to a scanner and ham radio and another connected to a scanner and CB radio with the transmitting radios as primary.


When I installed my radio, I placed a Kenwood external speaker underneath the driverís seat. The audio is clear and itís out of sight. You can easily place two speakers underneath it depending on the vehicle.
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Old 03-13-2018, 2:15 PM
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When I installed my radio, I placed a Kenwood external speaker underneath the driverís seat. The audio is clear and itís out of sight. You can easily place two speakers underneath it depending on the vehicle.
Great idea but be sure to check for wiring and back seat heater vents. Some vehicles have stuff under there and some don't.
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Old 03-18-2018, 3:53 AM
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When I installed my radio, I placed a Kenwood external speaker underneath the driverís seat. The audio is clear and itís out of sight. You can easily place two speakers underneath it depending on the vehicle.
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Great idea but be sure to check for wiring and back seat heater vents. Some vehicles have stuff under there and some don't.
Unfortunately with my car, there isnít much room. Itís a very small car. I can barely fit one scanner under the seat. I also do have under seat vents and the airbag/seatbelt sensor wires under there. Everything is going to be placed in the trunk, with just the control heads and speaker in the cab.
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Old 03-18-2018, 9:59 AM
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Great idea but be sure to check for wiring and back seat heater vents. Some vehicles have stuff under there and some don't.


I have installed my radio in a Honda Civic, and now a Nissan Frontier. I have the vents as well but the radio stays forward of the vents as not to receive direct heat or air from the vents.

As for the airbag and heated seats, I have never had any issues for the six or seven years a of this setup. I ensured proper grounding and SWR is 1:1.

The only issue Iíve had is trying to find a place for my microphone, haha. I donít like drilling into the dash.
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