It might take some work to figure out where the EM noise is leaking from, and whether an earth ground would be helpful. I noticed that the AM reception isn't great even when the car is not running (only radio on), so a better antenna may improve signal to noise as well. Since BMW never came up with a quick fix for this, I'm thinking that it may be more involved to remedy. Maybe some HAM radio experts out there can come up with some choke design or bandpass filters that could redue the noise too! Thanks for the question!
Would an earthing 'brush' style cable connected to the motor shield reduce the interference ?
It might take some work to figure out where the EM noise is leaking from, and whether an earth ground would be helpful. I noticed that the AM reception isn't great even when the car is not running (only radio on), so a better antenna may improve signal to noise as well. Since BMW never came up with a quick fix for this, I'm thinking that it may be more involved to remedy. Maybe some HAM radio experts out there can come up with some choke design or bandpass filters that could redue the noise too! Thanks for the question!
I'm activated AM on my 2017 i3 Rex, but reception is so so maybe the short antenna and alot of humming
I can see why BMW North America disabled the AM radio... now if they had the NOAA weather band... Thanks for watching!