Originally Posted by WinWiz View Post
If it's caused by my cars console, why is left side different than right side? Distance is equal and except for gas, brake and clutch pedal the shape is almost equal to...
Steering wheel, steering column, gauge cluster, different seat position, any of those could be playing a role. If EQ doesn't fix it, don't try, there's no reason to boost the EQ if it isn't changing the acoustic response.

The problem is not lobing, as previously mentioned. Angling the mids won't make a bit of difference at 500-600hz. Even an 8" (don't know what size your mids are) are omnidirectional to around 1,500hz or more.

How wide are the dips, how many dB lower are they, and is it actually audible?