btech gmrs-50v2 when i key up im my truck i get feed back

[WRWQ613]

btech gmrs-50v2 when i key up im my truck i get feed back in my stereo even when the radio off any one know y ??? it just started it never had it before  low power it doesn't but it will in high and mid  

[Socalgmrs]

How is the radio hooked up?   Both directly to the battery?   

[WRWQ613]

23 minutes ago, Socalgmrs said:

How is the radio hooked up?   Both directly to the battery?   

for right now i am using the cig lighter plug for now was doing some testing 

[WRYZ926]

The cigarette lighter is the worst thing to use, especially for a 50 watt radio.

The lighter port is usually only rated for 10 amp and a 50 watt radio pulls double that on transmit.

Plus there is a greater chance of getting RFI into your vehicle wiring harness that way.

Your best bet is to run the radio positive lead to the battery and the radio negative to a chassis ground. This is especially true if it is a newer vehicle equipped with the battery management system.

[WRWQ613]

5 hours ago, WRYZ926 said:

The cigarette lighter is the worst thing to use, especially for a 50 watt radio.

The lighter port is usually only rated for 10 amp and a 50 watt radio pulls double that on transmit.

Plus there is a greater chance of getting RFI into your vehicle wiring harness that way.

Your best bet is to run the radio positive lead to the battery and the radio negative to a chassis ground. This is especially true if it is a newer vehicle equipped with the battery management system.

ok thanks 

[DeuceoneRadio]

23 hours ago, WRYZ926 said:

Your best bet is to run the radio positive lead to the battery and the radio negative to a chassis ground.

Would this be the same for a 40 watt radio? 

Would that still have a slight trickle drain on the battery?

Can I use an add-a-fuse tap to power it from the fuse panel? 

[WRYZ926]

I personally would not try running anything more than a 25 watt radio from the cigarette lighter/accessory port. 

I would  just run the positive wire to the battery and the ground wire to a good chassis ground.

Anytime you power a transceiver through the vehicle wire harness you take a chance of getting RFI issues.

Now if you are worried about a power drain, you can use a 12v relay that won't power the radio until the vehicle is started.

Here is a diagram showing how to wire a relay.

So you would run a wire from a power source that is only on when the vehicle is running to 86, that will only close the relay switch when the vehicle is started. And you can use a fuse tap for this. You still want to run the radio positive to the battery positive and the radio ground wire to a chassis ground. For the relay, to work, run the radio positive wire to the relay 87 pin and then another wire from the relay pin 30 to the battery.

[WRXB215]

43 minutes ago, DeuceoneRadio said:

Would this be the same for a 40 watt radio?

It is the recommended method for any mobile two-way radio.

44 minutes ago, DeuceoneRadio said:

Would that still have a slight trickle drain on the battery?

Not enough to matter.

45 minutes ago, DeuceoneRadio said:

Can I use an add-a-fuse tap to power it from the fuse panel? 

Why?

[WRYZ926]

While a relay is not needed, some like to have one so that any accessory wired directly from the battery will not receive power until the vehicle is turned on. This is quite common when adding accessory lights to vehicles. And it keeps from killing the battery if you forget to turn the accessory off.

[DeuceoneRadio]

1 hour ago, WRXB215 said:

 

Why?

"SEO ACCY" refers to a specific fuse, likely within the vehicle's fuse box, that provides power to "Special Equipment Option" accessories. This often includes items like mobile radios for police vehicles or other aftermarket equipment. 

I have this slot.

This slot gets no power when the key isn't in the run position.

Trust me I don't doubt your method and I know its sound and proven. 

I'm learning so please be patient with me. 

The main issue would be testing to make sure that the circuit is not overloaded correct?

Update: Thanks for the "why" question. It led me to do some more research. While theoretically the fuse tap would work it's likely for the radio to overload the circuit. Lesson learned and that came simply from you asking why. I appreciate your response. 

Feel free to add any nuggets that you think that might help further.