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Old 05-03-2023, 09:16 AM   #11
FR-S2GT86
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Quote:
Originally Posted by ThatYeti View Post
Hum is coming from just that one speaker and the link below is to the setup, though I think mine might be a version older based on the discussion with them, though they didn't specify what exactly might be different.

https://oemaudioplus.com/product/86-brz-fr-s/
So no hum from any other speaker, got it. Obviously, the speaker is going to stop making the humming noise (in addition to all other noises) when it's disconnected. Speakers can't PRODUCE humming noises by themselves, but they can REPRODUCE a hum if it exists in the speakers' signal input. Again, this doesn't sound like a speaker issue, it sounds more like a problem in the pre-amp signal (the drivers' side, rear speaker output from the head unit) or an amplifier channel issue.

Looking at the manufacturers' site that you linked, as well as watching their installation video, I am unable to determine if they supply a four-channel or a six-channel DSP amplifier for the existing 8-speaker setup, nor can I determine if the DSP amp is summing the front and rear head unit speaker outputs or allowing a four-channel independent signal input into the amp. It would be nice if I could see a wiring schematic supplied by OEM+ for your particular sound package installation.

When watching the video, I noted that in some installations, they use a jumper connector on the 10-pin harness for the front door speakers at the factory door speaker amplifier, but in other installations they connect a harness from the OEM+ amplifier setup to the 10-pin harness instead. Answer this: When you use the fader control on the head unit, does it actually fade between the six front and two rear speakers?
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