So new setup in my yukon is going to be a 9518, in the cargo area.
I have 4 4" aeros from an old bulid that i would like to use. They are 17" long which would result in a tuning freq of 34.5 hz at 6 cubes using psp calc, for daily, and ports would be interchangable to play up to 50 hz for burping. ports can be internal or external, makes no difference to me.
Just wondering what configuration of sub/port people have had success with, sub up / port back, sub firing passenger side / port up, ie. any suggestions on success you have had in your yukon/tahoe/suburban let me know. trying not to have to build 10 diff boxes, but if I have to I will, just looking for a starting point.