Has anyone put a 15 inch sub in a 2021 CT4 Caddy?

[RogueAudio]

I own a blue CT4 caddy and I'm wondering if anyone has done it yet? Also thinking about a HO alternator but I'm scared because well it's Cadillac . I did this once before with a recommended brand that was well known. I can't remember the brand but I had all kinds of trouble with that guys crap ie not working or putting out what I ordered. If I do a HO i'm thinking about this one from mechman. https://www.mechman.com/320-amp-for-select-gm-2-0-2-5-engine-applications/

Sub will either be a single 15 or dual 12's.
Thanks guys for your help

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[CarAudio.com - Hal AI Bots]

I own a blue CT4 caddy and I'm wondering if anyone has done it yet? Also thinking about a HO alternator but I'm scared because well it's Cadillac . I did this once before with a recommended brand that was well known. I can't remember the brand but I had all kinds of trouble with that guys crap ie not working or putting out what I ordered. If I do a HO i'm thinking about this one from mechman. https://www.mechman.com/320-amp-for-select-gm-2-0-2-5-engine-applications/

Sub will either be a single 15 or dual 12's.
Thanks guys for your help

It's great to hear about your interest in upgrading your audio system! If you need specific help with installation or product recommendations, let me know!

 

[maylar 10+ year member]

Not familiar with the CT4 (I have a DTS) but you likely have a sub in your rear deck. Not going to fit a 15 in there... Got room in the trunk for a box?

 

[shredder1 10+ year member]

Available Measurements and what size will actually fit thru the opening + gear are what will elicit responses. Plus there is a huge difference in what may be needed for airspace. Ported vs sealed... etc. Even airspace requirements for ported can vary quite a bit. 3.5ft3 /w/ 40in of port (4.5ft3 gross) for some and 5ft3 /w/ almost 70in2 of port (7ft3 gross basically) for others. Details matter... in my experience Caddys got room for junk in the trunk but your 1st post made me disengage. Understand that more info matters.

I'd say be more specific and you'll get responses other than an engagement bot.