E34 trunk bass

[ByAudio82]

Hi guys,im putting in some audio in my BMW e34 saloon,for those who knows this car the trunk is pretty closed or sealed up,exept from the foldable armrest in the middle of the backseat back.
I have 2x12 and or 3x10 sub box to put in the trunk,whatvis called...mmm the rear shelf is very sealed up too,should i make two 8" bass ports here or is the hole in the backseat back enough for letting the bass in? What do you think?

mvh

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[Popwarhomie 5,000+ posts]

I personally would build a 4th order bandpass with the port going through the ski pass.

 

[ByAudio82]

Not easy to upload pics here.
Bandpass ok.

I have two finished boxes already,one 2x12 and on 3x10 i would like to use in this car..

The opening in the backseat back when the armrest is foldes down,measures in cm: 31x23cm,is this good enough for the sub?