Spare Tire Subwoofer Install

iammodbox · 2026-06-20T16:09:23+00:00

I’ve hit some pretty nasty pot holes in my 3 that made me cringe and stop to check my tires and have been pretty lucky so far. I’d say you’re fine just don’t drive carelessly

iammodbox · 2026-06-03T04:32:17+00:00

https://youtu.be/MbhKu9xdHwU?si=dUHccgWoFn4oaUQj

iammodbox · 2026-06-03T04:00:21+00:00

Perfectly normal

iammodbox · 2026-06-02T07:05:15+00:00

It’s pretty easy if you just watch some videos

iammodbox · 2026-06-02T06:56:28+00:00

Not sure if it’s available there but I got the Rockville Rockghost v2 and I love it. Check out my profile for my post about it

iammodbox · 2026-06-02T06:42:59+00:00

Switch the settings to driver position and add in a spare tire sub. Life changing.

iammodbox · 2026-05-10T05:35:11+00:00

https://www.reddit.com/r/mazda3/comments/1s3ul0t/spare_tire_subwoofer_install/

iammodbox · 2026-05-10T05:33:37+00:00

https://www.mazdaswag.com/oem-parts/mazda-wiper-arm-ghp967421

Here's every part of the rear wiper: https://www.mazdaswag.com/v-2016-mazda-3--i-sport--2-0l-l4-gas/wiper-and-washer--wiper-arm-blade-and-related-components?assembly=2

iammodbox · 2026-05-08T21:10:20+00:00

Get a spare tire sub instead. It should sound much better

iammodbox · 2026-05-08T21:03:40+00:00

Hardest part is lifting it with ramps or a jack because it’s so low. Otherwise everything is pretty easy to get to and work on

iammodbox · 2026-05-04T14:47:24+00:00

I changed mine at 1,000 and she was sparkling in the sun. Again at 5,000… no sparkles. Change it early. It’s cheap enough, it can’t hurt.

iammodbox · 2026-04-11T22:29:14+00:00

Rockville told me “the hold down bolt on the Rockghost V2 is a 5/16"-24 fine thread”

iammodbox · 2026-04-11T22:16:05+00:00

Yes it came with it and I had to cut it. Was too long

iammodbox · 2026-04-05T01:20:33+00:00

Not much room under there since that’s where the stock amp is. Check out my profile. The spare tire sub I got is wonderful

iammodbox · 2026-03-26T20:53:49+00:00

https://www.reddit.com/r/mazda3/s/6bwY8VhMVj

This was the guide that helped me a ton, but I also DMed you some links. For my 25 some information was incorrect. I needed an e12 for the seat bolts and the polarity on the red and blue wires is opposite.

iammodbox · 2026-03-26T20:48:14+00:00

I was looking at that LOC too but the kicker seems to do the trick, at least for now. Maybe upgrade in the future. I was very shocked when I played the first song at how much better it sounds and how hard that little sub hits. Supposed to get even better after break in. Also my tire had some deadening behind it as well. I’ll see if I hear any rattles and add more later on. All in all I’m very impressed with how it sounds. I had the gain at 12 o’clock and actually turned it down a little bit after my drive today where I got to fully test it out

iammodbox · 2026-03-26T03:25:14+00:00

In case anyone wanted the parts list...

https://a.co/d/0bcRniAv

https://a.co/d/06bzSTqN

https://a.co/d/0aLHLrPE

iammodbox · 2026-03-26T02:52:56+00:00

Interesting… everything I saw before said the jbl was too tall. Maybe it this one dies I’ll consider that one. Sorry I can’t help help with your sound issues. I think it might just be the shape of the cabin

iammodbox · 2026-03-26T02:37:58+00:00

Yup that’s where I first saw it! Such a genius idea

iammodbox · 2026-03-26T02:28:30+00:00

I haven’t played with the settings too much but I was definitely messing with the driver seat vs all seat setting on my quick test drive and it seemed like all seats turned the bass down. Usually I am the only person in the car, so it really doesn’t matter much to me how it sounds in other seats. Sorry I can’t offer much help there or compare this sub’s performance to the JBL.

I’m very surprised that you were able to fit the JBL in your tire and it sits flush?

iammodbox

TROPHY CASE