Subwoofer box A3 8P 2011

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JamieXoX

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Hi i have a 2011 A3 8P sportback model and have bought this so i can put a subwoofer in the boot
https://www.ebay.co.uk/itm/Audi-A3-...130364?hash=item2a961d51fc:g:W1IAAOSw9hdaDun5
this is meant to be for my car but there is no specific space in the boot for this or above the wheel arch in the boot. do i have to cut out the boot trim to fit it in or what how do i do it as i really want a subwoofer in the boot thanks for your help

this car does not already come with a subwoofer or anything in the boot and i cant seem to find anyother sub woofer box for my car model
 
JamieXoX said:
Hi i have a 2011 A3 8P sportback model and have bought this so i can put a subwoofer in the boot
https://www.ebay.co.uk/itm/Audi-A3-...130364?hash=item2a961d51fc:g:W1IAAOSw9hdaDun5
this is meant to be for my car but there is no specific space in the boot for this or above the wheel arch in the boot. do i have to cut out the boot trim to fit it in or what how do i do it as i really want a subwoofer in the boot thanks for your help

this car does not already come with a subwoofer or anything in the boot and i cant seem to find anyother sub woofer box for my car model
Click to expand...
Hi I've seen custom subs in the boot. Which have replaces the oem ones not cheap. If you Google it I think quite a few examples will come up

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I don't think there is already any subwoofer in the boot. also is the ebay link one i provided above a custom or oem? I have already bought it but i dont know what to do with it now
 
Mines has sub in boot 8p facelift I've seen others that have made replica out of mdf. Somone on this site has done it and it looks good also sounds great.
JamieXoX said:
I don't think there is already any subwoofer in the boot. also is the ebay link one i provided above a custom or oem? I have already bought it but i dont know what to do with it now
Click to expand...

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Look up galanot it's an old post but he did a retrofit of the sub. Also pic of something similar
leonwilliams said:
Mines has sub in boot 8p facelift I've seen others that have made replica out of mdf. Somone on this site has done it and it looks good also sounds great.

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Click to expand...
d9359f2a6cfe669653a015e211533d38.jpg


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leonwilliams said:
Mines has sub in boot 8p facelift I've seen others that have made replica out of mdf. Somone on this site has done it and it looks good also sounds great.

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Click to expand...

im really confused though can i use that box that i've bought or should i return it? it doesnt look like it fits i think but should it fit? because thats what the ebay ad said it should
 
JamieXoX said:
im really confused though can i use that box that i've bought or should i return it? it doesnt look like it fits i think but should it fit? because thats what the ebay ad said it should
Click to expand...
Have you tried it insitu takes 20mins to strip panels out in boot other pics of subs
76413432db337ab9b843053b7dd6babf.jpg
61d691bb3454982b36dcd6e90b82357e.jpg
ebec3c61e20b252f6fc20ae444d998f2.jpg


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oh okay i didnt realise its under the boot trim i'm sorry lol no i haven't taken the trim off yet. for some reason my stupidity led me to believe that it sits in the boot and not under the trim. will check this out htank you so much
 
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LarrySFU said:
Would this mean the OEM speakers and sub are Bose for the 2011 A3?
Click to expand...
No mate it's none bose only s line has bose. If you put your system. The aun is on left hand side if you place your hand on the panel you should either hear it or feel it. I was going to replace mines wanted more depth to the base but depending what I play it sounds ok.

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Are you using headunit that came with car or putting in aftermarket
leonwilliams said:
No mate it's none bose only s line has bose. If you put your system. The aun is on left hand side if you place your hand on the panel you should either hear it or feel it. I was going to replace mines wanted more depth to the base but depending what I play it sounds ok.

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Click to expand...

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leonwilliams said:
No mate it's none bose only s line has bose. If you put your system. The aun is on left hand side if you place your hand on the panel you should either hear it or feel it. I was going to replace mines wanted more depth to the base but depending what I play it sounds ok.

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Click to expand...
mine is not s line so im not bose so does this means i dont have a subwofer in my boot
leonwilliams said:
Are you using headunit that came with car or putting in aftermarket

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Click to expand...
i am using kenwood tape
 
leonwilliams said:
Did you check if you've got sub

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I have the standard non bose amplified speaker system. Do you think its possible to upgrade just the sub speaker using stock sub box and wiring?
 
Hi there is a amp connected to the sub.yes it is possible to upgrade the sub best tip go to Halfords tell them you want to upgrade th3 sub they will tell you best way to do it because the sub has double wires connected to it. Then take there information and your sorted.
D7YAB said:
I have the standard non bose amplified speaker system. Do you think its possible to upgrade just the sub speaker using stock sub box and wiring?
Click to expand...

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JamieXoX said:
hi buddy
got called into work this morning and only just got home. i checked and doesnt seem like a sub there :( need to open the trim i gues
Click to expand...
Hi mate the sub is behind the trim . Put system on turn vase up and play your hand against the trim .

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leonwilliams said:
Hi mate the sub is behind the trim . Put system on turn vase up and play your hand against the trim .

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Click to expand...

****** hell, im surprised your still awake lol
yeah i did put the volume up earlier and put my hand and ear next to it but couldnt feel or hear anything
 
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leonwilliams said:
Hi mate how's it going on the sub front

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hi mate sorry been stuck at work and not had much free time. so theres definitely no subwoofer in the boot im going to have to fit it in with that box just have no idea on how to do it including removing the trim etc and fitting that box in then cutting a hole in the trim i reckon to go around it?
 
if im honest, the better way to have done this would be to have researched it first. not meant in a snide way, its just that youve bit the bullet on a £75 box of mdf and carpet with no idea on how to install it.
the factory fit sub is crap, so you could have done an underseat sub install for less than £150 and had an improvement, now youve got the the expense of a sub, amp, wiring kit, the box, the time its gonna take to install and so on.

also i cant see whether youre using the stock headunit or aftermarket, which will affect installation.

theres a few ways to wire it up depending on your current set up. what is your headunit? as you have no factory sub im assuming you dont have rear speakers?, what sub and amp were you planning on using?

edit- just seen you mention kenwood tape, got a picture of that out of interest
 
samisnake said:
if im honest, the better way to have done this would be to have researched it first. not meant in a snide way, its just that youve bit the bullet on a £75 box of mdf and carpet with no idea on how to install it.
the factory fit sub is ****, so you could have done an underseat sub install for less than £150 and had an improvement, now youve got the the expense of a sub, amp, wiring kit, the box, the time its gonna take to install and so on.

also i cant see whether youre using the stock headunit or aftermarket, which will affect installation.

theres a few ways to wire it up depending on your current set up. what is your headunit? as you have no factory sub im assuming you dont have rear speakers?, what sub and amp were you planning on using?

edit- just seen you mention kenwood tape, got a picture of that out of interest
Click to expand...

i can send it back i guess but idd prefer this over a under seat sub. i just need to lern how to fit it
do i have to get an amp too? honestly im not even sure what an amp is sorry lol i thought theyre built into the stereo and no i dont have speakers in the rear
time i aint too bothered about tbh
as of now ive got the box the subwooferspeaker and some good quality cable and some decent tools do i need to buy anything else
im gonna start watching some youtube vids on it today and see what i can learn. id appreciate it if you guys could help me please


its this kenwood one
http://www.halfords.com/technology/...MI3aLWufHt2gIVirHtCh1y9wuNEAQYASABEgL0MvD_BwE
 
Just persevere , it'll be worth it .

7" display double din opens up the possibility of a reversing camera .

Sub amp - Class D mono block .

Choose a sub carefully as you want to match both the sub power handling and amp output.
Also match the box internal volume to subs required volume , polyfill helps here .

4 gauge amp wiring kit .

Silent Coat panel damping .
 
Gazwould said:
Just persevere , it'll be worth it .

7" display double din opens up the possibility of a reversing camera .

Sub amp - Class D mono block .

Choose a sub carefully as you want to match both the sub power handling and amp output.
Also match the box internal volume to subs required volume , polyfill helps here .

4 gauge amp wiring kit .

Silent Coat panel damping .
Click to expand...
hi m8.

this is the sub speaker i bought. https://www.ebay.co.uk/itm/JBL-STAG...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

what is the subs required volume? i know the volume of the box is 8 litres. i really wanna get this done properly myself. thanks for your help btw guys
im a bit lost with the amp now? idk what to do :-/ im a newbie to car electrics and speakers but i want to try and learn it
 
This is why you have to choose wisely , the box is 8L and the sub wants 10L !
 
Ok what you do is go to Halfords tell them what your thinking. They will tell you what you need and give you a list and price. You take this information home and you make it your own. Ie take their ideas and make them better for you. They will even explain how to run all the wires.

Don't rush it plan each stage running wires for amp and sub will take time due to removing panels.
JamieXoX said:
hi m8.

this is the sub speaker i bought. https://www.ebay.co.uk/itm/JBL-STAG...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

what is the subs required volume? i know the volume of the box is 8 litres. i really wanna get this done properly myself. thanks for your help btw guys
im a bit lost with the amp now? idk what to do :-/ im a newbie to car electrics and speakers but i want to try and learn it
Click to expand...

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leonwilliams said:
Ok what you do is go to Halfords tell them what your thinking. They will tell you what you need and give you a list and price. You take this information home and you make it your own. Ie take their ideas and make them better for you. They will even explain how to run all the wires.

Don't rush it plan each stage running wires for amp and sub will take time due to removing panels.

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Click to expand...
i went to halfords after you said last time and the guy there had less of a clue about speakers and sound systems than I did. his manager had no idea either. tried another halfords nearby and had the same issue. so halfords in my area is a bad idea lol. i guess its just me to myself now hehe
 
JamieXoX said:
i went to halfords after you said last time and the guy there had less of a clue about speakers and sound systems than I did. his manager had no idea either. tried another halfords nearby and had the same issue. so halfords in my area is a bad idea lol. i guess its just me to myself now hehe
Click to expand...
Thats not good my Halfords spot on mate. Sorry Halfords down there crap. See if you have any audio specialists we have a few up here. Again use there ideas for you.

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Something closer to the 8L , some 8" subs that are not even shallow mount require as little as 6.5L .

You can go 8.5 - 9L , this is where the polyfill comes in...
 
Where you based
JamieXoX said:
i went to halfords after you said last time and the guy there had less of a clue about speakers and sound systems than I did. his manager had no idea either. tried another halfords nearby and had the same issue. so halfords in my area is a bad idea lol. i guess its just me to myself now hehe
Click to expand...

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leonwilliams said:
Thats not good my Halfords spot on mate. Sorry Halfords down there ****. See if you have any audio specialists we have a few up here. Again use there ideas for you.

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Click to expand...
been to a local audio shop as well, they seem to not want to tell anything in the hopes that ill pay them to do it lol. the less i know, the better.
 
Gazwould said:
Something closer to the 8L , some 8" subs that are not even shallow mount require as little as 6.5L .

You can go 8.5 - 9L , this is where the polyfill comes in...
Click to expand...
All the higher quality ones are 10L :-( seems as though only the cheap £10-20 ones are 8L or so.

if i use the 10L, would the 2L difference really make that much of a difference?

How would the polyfill help if the capacity is already too small?
 
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