I have an audiobahn bandpass box that fits 2 10" subs and has a hookup for the neon piece that goes in there. Bought it for $90, asking $40 O.B.O for it. Don't want to ship this unless buyer covers shipping because it's big and heavy.

I also have a Monster Cable 1. Farad DIGICAP for $100 O.B.O. Check my other FS thread in this section.

Local to NorCal.