Separate small (motorcycle sized) 12v battery behind a 2p2t switch to separate both positive & negative lines powering the radio only. Turn switch on to charge battery from DC2DC, turn off when you want to listen to the radio. [If the interference really is only coming along the power lines...]

Jay

On 10/13/21 7:49 PM, nathan christiansn via EV wrote:
I forgot to add - I would like to avoid getting a new dc-dc converter if
possible.

Nathan

On Wed, Oct 13, 2021 at 5:48 PM nathan christiansn <nrc71...@gmail.com>
wrote:

Hello Everyone,

I have a Geo Metro that I converted electric and the radio has never been
able to pick up more than one station because of all the noise the dc-dc
converter outputs. I have been able to verify that the noise is being
picked up through the 12 volt input of the radio and not through the
antenna. I have tried putting a large line-voltage EMI filter on the output
of the dc-dc converter and it did not do anything. I also tried putting a
large capacitor on the output and experienced similar results.

Is there anyone out there who has had a similar issue and found a
solution? Any ideas would be appreciated.

Nathan

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