Now I see why I didn't know about the CDT spare wheel sub, its new, they also have two new compact active subwoofer that I think would work out great under the front seat but they are out of stock.
https://www.cdtaudio.com/sep_compone...15hsub15sl.php
https://www.cdtaudio.com/sep_compone...minimax400.php
https://www.cdtaudio.com/sep_compone...minimax320.php
Speaking of CDT, I vacation/visit their area periodically, was disappointed when I called them last year to see if they had any type of showroom to check out their go, it was a no go.
As much as I would like to try a separate mono amp and the new Kicker down firing unit with the passive radiator, I need to be mindful of the budget, how he uses his space, and remember this is about the process first.
I will check out my local shops Black Friday sale that starts tomorrow and if I can't find a self powered sub I like, I may just go with this one, https://www.crutchfield.com/p_777B8P...ce-B-8PTD.html , which I just learned is Crutchfield house brand. We will just oversize the wire to allow for future changes.