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>> No. 3753 Anonymous
26th November 2016
Saturday 8:02 pm
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I don't understand car music systems. I don't understand audio tech in general but car stuff really fucking confuses me. I just can't wrap my head around it.

I have a stock (Renault) head unit and CD changer with stock speakers. I'd like to buy a new head unit with jack/bluetooth. Will this kill the stock speakers? I don't know if all the connections and shit are standard either, I've been looking at this for a couple of days and really can't fucking understand. I'm sure I'm just being dumb.

I don't particularly want to change the speakers because I probably won't have this car for long but will probably transfer over the head unit I get.
Expand all images.
>> No. 3754 Anonymous
26th November 2016
Saturday 8:09 pm
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I suppose I could change the speakers if it's not too expensive. I don't know if ebay can be trusted on these matters.
>> No. 3755 Anonymous
26th November 2016
Saturday 8:09 pm
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Most recent cars use standard connection. So you just pull out the old head unit and connect your new one. You may need to get a face plate to fill the hole up properly because most stock radios are a funny shape.
>> No. 3757 Anonymous
26th November 2016
Saturday 8:14 pm
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>>3753

It's generally straightforward. The backing units are standard, you might just need an adaptor or two for the cables, but generally you'll get everything you need in one kit. Your speakers will still work.

The biggest pain in the arse with replacing stock radios, is that you have to buy a whole new front fascia, and associated pains such as having to pull of all the cigarette lights and heater knobs etc. then refit them after.
The fascias can be pretty expensive too, if your car is a model which needs a very large fascia.
>> No. 3758 Anonymous
26th November 2016
Saturday 8:16 pm
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>>3753
There are ISO standards for the connectors. You'll need an adapter for your model of vehicle to the standard used for aftermarket head units, tools to remove your existing head unit, and possibly a fascia panel. It's a dead easy job, where the most fiddly part is probably getting the removal tools into the right spot. If it's a decent unit (i.e. not a Chinese knock-off) then there's no risk of it breaking your speakers.
>> No. 3759 Anonymous
26th November 2016
Saturday 8:22 pm
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>>3755
It's a 12 year old car. Crappy Megane II. I will probably only have it a year or so so I don't particularly want to put money toward it if it's not transferable to another vehicle.

>>3757
None of that's an issue with my car I don't think, it's just like pic related.
>> No. 3760 Anonymous
26th November 2016
Saturday 8:33 pm
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>>3759
Wow, you've got one of those really useful little shelves in your dashboard.
I wish modern cars still had those, instead of all the useless buttons and wanky soft touch plastics they fill the space up with now.
>> No. 3761 Anonymous
26th November 2016
Saturday 8:38 pm
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>>3760
I don't actually, I have a 6 CD changer. I do have one of those little shelves but it's not installed.

Anyway, I think I need my hand held with this, I have no idea what I'm doing. I know how to switch the speakers like for like because I have other stock speakers and I just put the two best ones in.
>> No. 3762 Anonymous
26th November 2016
Saturday 8:39 pm
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>>3759

That looks like a double DIN slot, if you want something fancy.
>> No. 3763 Anonymous
26th November 2016
Saturday 8:49 pm
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>>3759
By the looks of it, you just need a replacement panel for where the head unit is. The spikes go in the four holes in the corner, and the existing unit just slides straight out.

Obviously, I can't tell whether or not this is right for your exact model, but if it isn't I doubt that the right one will be all that different.
https://www.amazon.co.uk/RENAULT-MEGANE-FITTING-ADAPTOR-REMOVAL/dp/B003JINOS0

As a caveat, it may be worth keeping hold of the old unit. After replacing my head unit, I never got around to selling the original and eventually skipped it. When the car was written off, the insurance company were insistent that as the standard factory spec included a head unit and I hadn't declared otherwise they were entitled to recover a vehicle with a head unit. When I queried it, they told me that in the circumstances, even though I had declared the replacement head unit, they would have accepted the original if I still had it.
>> No. 3764 Anonymous
26th November 2016
Saturday 8:50 pm
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>>3762
I don't. Those LCD screens are inordinately expensive.
>> No. 3765 Anonymous
26th November 2016
Saturday 9:32 pm
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>>3764

You can get one for £100 on Amazon, £200 for a properly kitted Android one with a reversing camera and DAB and GPS and all sorts in it.
>> No. 3778 Anonymous
14th January 2017
Saturday 8:31 pm
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>>3761

>I know how to switch the speakers like for like because I have other stock speakers and I just put the two best ones in.

Caution is advised when swapping your head unit out for a new one and leaving the stock speakers in place. You should at least try to find out what kind of maximum rating (in watts) the speakers have and at what resistance. It's usually printed on a small sticker on the back of a speaker, or you can ask on an online forum.

But your concern isn't going to be if your new head unit is more powerful than your speakers; it's the other way round. It's better to have a more powerful head unit because it is capable of producing good clean sound at just about any volume that you will play your music at. If you turn a low maximum rating head unit up too far, it will produce clipping, which is a sure way to kill any connected loudspeaker over time. See here: https://en.wikipedia.org/wiki/Clipping_(audio)

The disadvantage is that you can also destroy the speakers if you operate them with a higher power head unit at extreme volume. But usually, that will be at volumes that you will not be comfortable listening to anyway.
>> No. 3779 Anonymous
14th January 2017
Saturday 9:03 pm
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Here's some advice, you may need a dash kit if you go for single din as you have a double din slot size. You may also need a wiring loom. An easy to find out which ones you need is to go crutchfield, select head unit and select car. Then crutchfield will find the wiring loom and if any dash kit is needed.

Then you can get the parts cheaply online. I found a car forum for the one I own and they have detailed instructions on how to do it, even going down to circuit drawings, plus you can watch youtube videos of it too.

I plan on doing this soon too. Just need the right screwdriver first. Good luck.
>> No. 3780 Anonymous
14th January 2017
Saturday 10:05 pm
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>>3778
>But usually, that will be at volumes that you will not be comfortable listening to anyway.
I take it we're talking this sort of volume:

https://www.youtube.com/watch?v=KqSatmToTik?start=10
>> No. 3781 Anonymous
14th January 2017
Saturday 11:47 pm
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>>3780

Maybe I am just too old, but I don't understand the point of a car stereo system like that. What is the purpose of stuffing a car full of insanely loud hi fi equipment? Which will then produce levels of volume at which the car can't even be driven safely in traffic, let alone without industrial strength ear protection?

I spent 800 quid myself on my audio entertainment system in my car. So it's not really the idea of spending notable amounts of money on car hi fi equipment that I am shaking my head at. But the difference is that I spent the money with the idea in mind of having the highest quality of sound that that amount can buy you. The result being that I've got a kind of sound in my car that rivals that of many home entertainment systems in clarity and dynamic range. No, I can't make my boot lid or number plate vibrate. And you won't hear any kind of "boom boom" from a block away. But when I put on anything with loads of acoustic instruments, you will feel like you are inside a concert hall.
>> No. 3782 Anonymous
15th January 2017
Sunday 12:40 am
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>>3781

It gets the ladies proper moist.
>> No. 3783 Anonymous
15th January 2017
Sunday 12:56 am
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>>3782

Last post of the night, lads. Go to bed.
>> No. 3784 Anonymous
15th January 2017
Sunday 9:30 am
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>>3780


https://www.youtube.com/watch?v=T7MClxvXrIg
>> No. 3789 Anonymous
18th January 2017
Wednesday 9:24 pm
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I don't have a clue what I'm doing. The stereo speaker inputs are... This thing you see everywhere but the cable on the car speakers is some custom one? I've not seen anything referenced that I'd need an adapter. How the hell do brown teenagers do this??
>> No. 3790 Anonymous
18th January 2017
Wednesday 9:36 pm
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This cable came with the stereo and plugs directly into the back of it. The top one has a label that says 'system remote control'. What happens with these I'm unsure.
>> No. 3791 Anonymous
18th January 2017
Wednesday 9:38 pm
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Don't know where this came from if I'm honest. Not sure what it is.
>> No. 3792 Anonymous
18th January 2017
Wednesday 9:39 pm
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More mysterious cables.
>> No. 3793 Anonymous
18th January 2017
Wednesday 9:40 pm
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I was going to write a bit about each one but forgot what they were.
>> No. 3794 Anonymous
18th January 2017
Wednesday 9:41 pm
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Finally this is what stuck in the stock stereo. The small ones are the speaker outputs I think. How I get from those to the ones on the back of the new stereo is anyone's guess.
>> No. 3795 Anonymous
18th January 2017
Wednesday 11:24 pm
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I worked it out, turns out it's easy as pie and I was just being a mong.

Now I have to find a way of fitting it in my dash.

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