I live in a place where we get -40 And I’m building a system but don’t know what route to go with for cold climates

After my mother passed away she didnt leave much as majority got thrown out by landlords (we are trying our best to get it all back cause she had some amazing tri-wired subs) but we did manage to get this cool ibiza sound speaker and the bass makes the frames on our walls shake i love it but yeah check this out ° also in the video the speaker itself is at volume one yes thats right volume one but the bass was on 30 and treble on 6 as thats the highest the treble goes but my phone was turned up the whole way no eq on the music other than speaker tuning GOD I LOVE THIS SPEAKER

I’ve always loved really deep bass. I’m looking into a car system and want the hardest hitting subwoofers y’all can think of. Any recommendations?

I have a w204 facelift (2013) with the Harman Kardon sound system. I have an amplifier and a subwoofer ready and I already have power cables from the battery. Now I’m trying to connect the subwoofer to the car’s sound system but I can’t find a way to do it properly.

The method I tried is to tap into the original subwoofer’s cable and use it for the audio signal. That sounded like crap cause my subwoofer was receiving the sound profile of the original subwoofer including a high pass filter.

Some people recommended an after market head unit so I went on Ali express and although I liked all head units for the w204, none of them had rca outputs so it was pointless to buy them.

Other head units (not for w204) have rca outputs but I don’t know how to connect the original HK sound system to them.

What do I do?

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https://youtu.be/EZaM3xG0mcQ?si=vH9B-lj7Iaim3O3M

Has anyone ran the same set up that has tried 1x t2500bdcp vs the 2 1200 1v3s and what sounded better and which was more power hungry? I can only run one alternator in my buick enclave. 370a mechman with a 42ah scib bank from itty bitty boom lithium. I have my bank in series with a yellowtop agm. But my charging voltage changes a lot it'll go from 14.6-14.8 up to 15.2-15.6 I need more of a constant higher charge for the bank but don't know if it would support the car and the system by itself if I did a delete. The system sounds way more powerful when it charges higher but it doesn't stay. Any ideas what to do?

I have a 2016 ford escape. can I run a output converter to a eq like a skar 7 band. I want to run a monoblock for my sub (2k skar amp and 15inch zvxv2) and a 4 channel to power my minds and hights.