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Accord loud "hum" using high level input
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<blockquote data-quote="BreadLord" data-source="post: 8664897" data-attributes="member: 674841"><p>I isolated both RCA wires as best I could, even used a multimeter to test for a short on them. </p><p></p><p>I've ditched that system and got a more proper setup with a pac oem1 LOC. Works great, but there is still somewhat of an issue. The same loud tone will be produced If amp is turned on, connected to the LOC via RCA and the radio is off. I jumped the rem to 12v with the radio off and it immediately made the tone. However using the rem wire from the LOC works perfectly as it's only on when the radio is outputting signal. (Trunk can be closed fine now) </p><p></p><p>So basically the noise only happens when the RCA (coming from the line out converter that's plugged into the stock harness) is plugged in and the amp is manually turned on. Doesnt happen when the remote wire from the LOC turns on the amp as it is then recieving input. Still troubling as it still has the potential to happen and I dont want there to be an accident due to a sudden deafening noise. Again, both grounds are bare metal. Is there anyway or device that can stop this? Thinking about a pac sni-1 noise isolator but unsure if the problem is actually a ground loop. Seems rca related so it might work.</p><p></p><p>Like to add that the trunk issue is gone. </p></blockquote><p></p>
[QUOTE="BreadLord, post: 8664897, member: 674841"] I isolated both RCA wires as best I could, even used a multimeter to test for a short on them. I've ditched that system and got a more proper setup with a pac oem1 LOC. Works great, but there is still somewhat of an issue. The same loud tone will be produced If amp is turned on, connected to the LOC via RCA and the radio is off. I jumped the rem to 12v with the radio off and it immediately made the tone. However using the rem wire from the LOC works perfectly as it's only on when the radio is outputting signal. (Trunk can be closed fine now) So basically the noise only happens when the RCA (coming from the line out converter that's plugged into the stock harness) is plugged in and the amp is manually turned on. Doesnt happen when the remote wire from the LOC turns on the amp as it is then recieving input. Still troubling as it still has the potential to happen and I dont want there to be an accident due to a sudden deafening noise. Again, both grounds are bare metal. Is there anyway or device that can stop this? Thinking about a pac sni-1 noise isolator but unsure if the problem is actually a ground loop. Seems rca related so it might work. Like to add that the trunk issue is gone. [/QUOTE]
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Accord loud "hum" using high level input
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