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My car stereo is very low volume and I listen to alot of live music. I know nothing about cars and am looking for a way to get louder speakers without having to take anything apart. Is there any kind of system that exists that I can plug into a usb/aux/cigarette port that I can sync up with my existing car speakers? (probably not but I thought i'd ask) Or does anyone have suggestions of any portable speaker that I could put in my car that would still sound good if I was using that instead of my existing car speakers? Thanks!

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    It helps to know the car year, make and model. If the car is using the original stereo or has a prior owner changed it out. And if the low volume is an issue of a failing unit or working proper and just not meeting your needs. – spicetraders Aug 31 '16 at 16:41
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    You probably need an amp, not speakers. – 3Dave Aug 31 '16 at 19:47
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The speakers aren't going to be your problem; putting higher powered speakers in won't actually make them any louder (it just allows them to handle more powerful inputs). Putting more sensitive speakers in would work to a point, but only if you know the sensitivity of the existing speakers, and can be expensive for a minimal improvement.

Ideally, you should take the car to a car stereo store, and let them know what you want from the system; they'll recommend a head unit, amplifier and speakers that all work well together. It's the best solution, but not the cheapest.

If you want a cheap solution, replace the head unit currently in the car, and keep the existing speakers. For about $100, you should get a worthwhile upgrade that can have an amplifier added at a future date if it still doesn't give you the volume and quality that you want.

  • +1 head unit upgrade is the definite first step. You can even head down to the local car audio store to check em out first. Best Buy, for example, has horrendous prices, but nice demo setups in the showroom. Then you can find a good price online. This does of course assume the ops vehicle doesn't have some weird nonstandard integrated stereo system, though, which seems to be becoming annoyingly more common these days. – Jason C Sep 1 '16 at 16:13
  • This is a good answer, but I don't know that a new head unit is necessarily the place to start without knowing the car make and model. Most half-decent double DIN HUs will run several hundred dollars, and if the OPs car has nav replacement is closer to $1000. In that case I would start by looking at entry level speakers and a modest amp driven off the stock HU. Even if replacing the HU is an option, most aftermarket ones often don't put out much more power than stock units, if at all; I've tried it. – Nicholas Jan 24 '18 at 21:35
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The tl;dr; answer? No.

While there are potential external speaker options, they will not sync up to your existing stereo, so issues of placement would probably negate any of the gains from them. None of the small bluetooth speakers which would actually fit on your dash are going to provide any clarity at the volumes you need to overcome road noise while driving. You could theoretically grab a pair of small speakers and a 50x2 12VDC digital amplifier, figure out where to put them, drive around, reposition them, reposition them, reposition them... or do it right (and safe) and upgrade your head unit.

If you DIY it - most vehicles with "not loud enough" stereos aren't bad to DIY - you could get a discless head unit for under $50, a mount kit (if needed) for another $10-$15 and a wiring harness for another $10. After some minor disassembly and a little soldering or crimping, you'll have a head unit with enough output power to hear your music and support for digital files or bluetooth audio.

Spend a little more on the head unit to get fun features like a high pass crossover to avoid wasting amplifier power on low frequencies that will detract from your music and/or damage your factory speakers, and additional amplifier outputs to add subs or external amplifiers if you want cleaner power (and want to upgrade the speakers so you can hear the difference).

Car audio is certainly not an all-or-nothing game. You can start small/cheap and only go further when you decide you want more. There are plenty of people out there who are happy to guide you on that path. Loud is cheap, loud and clean will cost a bit more, and flat is where it gets expensive.

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    Great advice - especially the all-or-nothing part. Personally, there's a limit to how much I'll spend on a car stereo, because if I want great sound quality, it won't be happening in a motorized tin box! :) – PeteCon Sep 1 '16 at 15:27
  • You know, Bose makes some pretty bangin' portable Bluetooth speakers. Theyre kind of like magic. – Jason C Sep 1 '16 at 16:12
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    No, they don't. Not something that will achieve what is asked for in this question. – Lathejockey81 Sep 2 '16 at 1:17
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There are systems that are cigarette/aux/usb/bluetooth that fit your needs as posted.
For example look at Sondpex Bluetooth Speaker System & Digital Music Player CSF-E65B.
It only has the drawback of taking space inside the car.

You might find this article interesting and it has several other suggestions on wireless car audio. Wireless car audio

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