Well... Anywhere in the majority of your picture... Depending if you got the small form factor amp you could put it near the sub (Behing the right hand side trim) or mount it on the back of one of the seats, I've seen/heard of people putting them under the back seats, however I would advise against that...
It also depends what you're installing or planning on running too...
Historically I've always used Industrial Velcro to mount the amp, so its easily removable. And on the wires to the speakers I've used terminals so you can easliy unplug them to remove the shelf (assuming thats where you are putting them...? Beware the parcel shelves are pretty pricey to replace though...) and or the amp, if you want/need to.
Firstly I would urge you to consider what you are aiming to achieve and what you want from your ICE.
6x9's have great marketing appeal as theyre common, cheap and give an apparent 'good bassy' sound. However there are several drawbacks to them, mainly they draw the overall soundstage backwards as they are usually massively overly powered in comparison to the fronts. On that same note, with them being commonly positioned in the parcel shelf, notably, in the same location as the subwoofer, they often get distorted by the SPL (Sound pressure level) of the subwoofer which renders them pointless in reality.
I would recommend, if you want loud and good sound quality, a very good set of separate front component speakers, wither 2 way or 3 way, however the drawback with 3 way is you have a 2nd woofer speaker to install somewhere which isn't commonly or simply done... 2 ways would suit you well.
you could even replace the rear speakers with an extra set of components.
In all the IASCA competitions I competed in (placed lowest 3rd back in 2004 - 2006. I finished the 2005 SPL season 2nd loudest in the UK) I only had a set of front components and 2 x 12" subwoofers. However I'm not in the market for loud daft stereo's anymore...
Work out what you want, take your time and buy the right gear once... IMO avoid 6x9's all together...
Dan
LOL, I was about to chime in with more or less the same advice - I was doing IASCA in '96/97.
In favour of rear fill, always spend more on the front components. The advice I was given was - The music doesn't come from the back of the concert (and bass is largely omnidirectional)
If find my factory BOSE setup ample these days, albeit not very bright in the highs.
All I want is a crisp and clear sound when playing music, and a nice bass is ideal but that can be done in the future, budget is anything really as I'll do it over a few months but nothing stupidly expensiveThe problem with mounting anything in the parcel shelf is that the pressure generated by the sub distorts them... So forget parcel shelf mounting at all...
In fact you can almost forget the back at all... I'll have a look at that link later and let you know...
With regards to amp channels and power etc etc it depends how loud or what kind of set up you want... You can do clever things like use two right rca's to one 2 channel amp running bridged and 2 left rca's to another amp bridged and effectively double your power output...
Ideal setup would be a 2 channel amp to run your fronts running at 4ohms and a d-class mono block amp to run your sub...
But again it depends what you want. I can itemise a competition setup for SQ (sound quality) or for SPL which is basically loud loud bass with decent fronts...
What's your budget and aim?
Just my two pennies worth...
I've been doing an install in mine just recently, and it's worth noting that its good to dynomat (sound deaden) as much as you can! Doors for sure, this will help. And lay down new speaker wires to all doors (though getting cables through the door grommets was a bit of a mission) especially if you plan to be pumping 70wrms or more to your speakers, the stock Audi cables aren't good enough.
Def wouldn't bother with 6x9's, it's not worth it, especially if you are installing a sub at somepoint, you could even still use the inbuilt Audi sub in the short run. Components in the front and perhaps coaxial in the rear would be more than enough, so the sound stage isn't pushed back. But I would run them through a good 4 channel amp.
I would also change the headunit too, you won't get hardly any benefit using aftermarket speakers on stock Audi.
Bare in mind any new speakers you install will need a run-in period of use before they loosen up and sound right. But there comes in lots of tuning!
D3mon, what class were you competing in? I was in stock 161-260
Managed to pick up this kenwood 640 w 4 channel amp, Is this any good for starting off?
It's got 3 rcas one line out and 2 line ins
I have just finished my install in my A3 8P. I did it in two stages because of the cost.
My ultimate aim was not for a loud, or flashy system, but an audiophile grade sound that was reliable.
I have used the standard symphony II head unit as it has 4x pre-outs. I fitted a £50 aux in kit.
I ran 4AWG wire with a 50A inline fuse from the battery through the rubber boot by the wiper motor and along under the interior trim to the boot.
I then built my own small amp cabinet in the boot and fitted two 12V PC fans on a digital temperature controller for cooling.
I have two amps, the first is a JL Audio JX360/4, this is powering 4x 6" carbon fiber Focal component speakers installed with ebay adapters in the factory locations. I have run my own 16AWG wiring for the speakers.
The second amp is a JL Audio JX250/1, it is powering a JL Audio 8W3V3-4 sub, installed in a custom fit MDF box from ebay that fits in the factory sub location with some modification to the carpet.
I have spent a long time adding things and solving problems with this system, but I'm finally happy with it. All in it cost me about £750, but no expense was spared.
Here are a few pics. Feel free to ask any questions.
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Is this in an 8l? Looks very nice and tidy, I do like the stealth install.