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Anyone else with random blasts of electronic interference through driver's door speaker?

phaphaphooey

Member
Mar 26, 2018
101
47
USA
I have a weird one for everyone. My "dash wiring harness" failed right before my warranty ran out which I am thankful for since it looked like a terrible job that would've been quite expensive out of warranty. After getting the car back, aside from noticing that my dash now rattles since the SC undoubtedly left some screws out when reassembling, I now get random bursts of electrical interference noise from my driver's door speaker. It can happen anytime but is more prevalent when slowing down using regen or sitting stopped. It is more rare while accelerating. I am certainly not an electronic whiz but have no doubt it is caused by the install of the dash wiring harness as it didn't do this before. I am assuming there is a bad connection somewhere or a bad ground or something. Does anyone have any ideas? Everything else in the car is fine.
 

uspearls

Member
Jun 20, 2020
40
48
San Diego. CA
Had exactly the same thing a few months ago and discovered this was addressed in an old thread. If you keep your cell phone in the deep center console under the main screen it can cause speaker interference via the MCU, which is located a few inches away. I moved my cell to the tray next to the USB outlets and problem solved! For the record, I had MCU1 at the time, but not sure that matters.
 
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Reactions: dark cloud

phaphaphooey

Member
Mar 26, 2018
101
47
USA
Had exactly the same thing a few months ago and discovered this was addressed in an old thread. If you keep your cell phone in the deep center console under the main screen it can cause speaker interference via the MCU, which is located a few inches away. I moved my cell to the tray next to the USB outlets and problem solved! For the record, I had MCU1 at the time, but not sure that matters.

You are my hero. It is odd that this just began after the harness replacement but perhaps that was coincidental. I will try out the revised placement.
 

dark cloud

Active Member
Apr 14, 2018
1,975
2,229
BC
Had exactly the same thing a few months ago and discovered this was addressed in an old thread. If you keep your cell phone in the deep center console under the main screen it can cause speaker interference via the MCU, which is located a few inches away. I moved my cell to the tray next to the USB outlets and problem solved! For the record, I had MCU1 at the time, but not sure that matters.

I have it with my drivers tweeter. It comes and goes, I just ignore it for a few seconds and then forget about the issue; never got around to investigate the issue by searching the forum. And yes, my phone is exactly placed as described.

Thanks for the post!
 

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