01 Tacoma 4x4 computer/kick spkr concern

I have an 01 Tacoma 4x4 (5spd). I am wanting to put my speakers in fiberglass enclosures in the kickpanels. I am wondering if the speaker's magnetic field will mess with any of the vehicle's electronics? I think the main computer is located in the center console, so that shouldn't be a concern. However, I noticed a small box (4"x4"x2") in the driver side kicks that is labeled "4 wheel drive computer". And there are a couple other small electrical boxes on the passenger side that I'm not sure about. Will I be ok to mount my speakers in the kicks or not?

Thanks,