What would this sound like?

This is probably a stupid idea but I've seen a few peeps on YouTube do this. I have an 02 ford ranger extended cab as a daily driver. I'm really into car audio though and I was gonna upgrade my highs and bass. One idea I had was putting my subs in my bed with my bed cover on top. I was going to limit any bed cover rattling noise possible too if I had them turned up. I know I ll be limiting bed space but I honestly would love seeing it big bass in action every now and then. I ll have my cab space back too since it is extended cab. I just want some opinions. I plan on keeping my truck for a few more years. Just want some loud music. Opinions. Preferably people who are actually into audio.

I love uploading to YouTube

Yes

You will learn something, that's for sure.

The only way this makes sense is to build a "blow-through" setup, where the sub box's output is sealed away from the outside and plays into the cabin via a port cut through the rear cab wall and front of the truck bed. If you're not going to do this, don't put subwoofers in back.

If you want good sound in your entertainment room do you install speakers in the bedroom?

Same concept IMO.

To me, it sounds like a waste of time, effort, and money.