What does running a test tone tell you?

[Slo_Ride 5,000+ posts]

Why'd you hijack my thread bro?

One way or another the title was gonna get fixed.

 

[Bobbytwonames 5,000+ posts]

One way or another the title was gonna get fixed.

So, let them fix it then. I wouldn't have cared.

 

[1aespinoza 10+ year member]

So, the test tone sounds the best and loudest at around 32hz.

That probably means that your box is tuned at 32hz. Now play through the spectrum until your dashboard or roofline dances. That would be the resonant frequency of your vehicle.