Hey all,

I'm looking at putting a sub in my TJ, but I want to keep my boot space (kids, cricket bag etc).

I was thinking of mounting on the side, behind a tail light, just a 10" sealed box sub (or a 12" sub if it'll fit nicely!), most likely Jaycar. Does anybody sell boxes moulded to fit and still allow access to the spare wheel. I'm no good with fibreglass so won't be attempting this myself! I'm a welder. If I can't MIG it, I don't touch it!! :D

I'll be running it all off a Jaycar 4x50WRMS amp, rears bridged off the rear channels, and running the fronts off the front channels, and rear speakers off the HU.

And also, how do you change the tweeters in the front doors, up high on the window line. I know they are there and sound OK without pushing them too hard, but I intend to give them a thrashing sometimes so I'll be upgrading. I've got the 6" speakers sorted from a previous car, so just tweeters needed!

Sorry if these sound like newb questions but searching the audio section is so bloody hard to target a specific query!

Cheers, Greg.

dunno if he still does them or not but bigs was selling 12" fibreglassed sub boxs that sit behind the tail lights

as for the tweeters im guessing you have the verada pods? still on the door but behind that black triangle bit
should be able to fit a 1" tweeter in there no worries then glue it in with a hot glue gun
have you got the right crossovers?

Hi mate,

A member named Biggs (think in WA) was making a sub-box exactly as you wish - but haven't noticed him posting up anything in a long time.

Door tweeters are just a push fit onto the "delta/sail-shaped" panel - use a small str8 screwdriver or a knife and gently lever the cover away from the door. There is a rubber moulding behind the tweeter cover with recesses in it, and there are tabs on the back of the tweeter cover which are a push-fit into those recesses. Until I saw tweeter covers broken in a self-serve wreckers, I'd have thought it impossible to cause damage getting these off - but someone DID manage the break the hard plastic tabs (go figure).

From there, tweeters are just held on by 2 star screws. You'll need the door trim off to detach the wiring connector for the tweeters.

Cool, I'll be going with the Jaycar tweeters with their inline filters. I'm not after show winning audio stage, just something that won't fall over the first time I crank it!

On another tangent with the sub box, is there patterns I can follow to make a box out of MDF?

you'll loose too much space making it out of MDF, fibreglassing would be the way to go
actucally maybe look at ers boot install thread and see how he made his box
http://www.aussiemagna.com/forums/showthread.php?t=67365

Yes, something like that but with a normally mounted sub with a solid mesh grill over it. I'm thinking a 10" with normal mounting depth or a 12" with shallow mount. But sealed or ported box? I just make them to fit, not work out the liters! Box needs to be able to be removed, but I can handle a couple of screws to keep it in place.

Mine was MDF - basically, with MDF and pushing the limits of just how 'removable' the box was - 24.25lt internal volume. Which, is on the small side for a 12" (I had to reverse mount mine to make sure I dont lose volume).

It should be ok for a 10" mounted normally tho :)

Cant go ported......not with MDF......well, depends.....

For a 10" ported box you need somewhere around 40lt, with fibreglass its possible, not with MDF if you want to ever take the box out....

I'm thinking a 10" will do me well. Not after massive bass, just enough to go with the front stage. I'll leave the parcel shelf factory speakers running off the HU. Which side has the most space to mount the sub? They both look about the same but I haven't had time to get the tape measure and verniers out!

The difference between drivers and passengers side wont be more than 1lt give or take. Drivers side is easier due to no electric antenna....

The box I built was rather simple, you could even get away with a simple rectangle box (about 3hrs to knock up). Stuff the inside with Polyfill (your local Lincraft/Spotlight can help you out there)

My wife has heaps of wadding from her craft stuff. Will pinch some of that! For a port, do I need the tube, or will a vent hole suffice? And good point about using the drivers side with the antenna. Would the passenger side be good to vertical mount my amp? Just far enough towards the outside to maximize internal boot volume.

Ported boxes are a bit harder than just adding a tube, its a rather calculated science. I use a program to calculate the box volume, shape, and port length/shape for the best sound.

A ported box will be usually 1.5-2 times the volume of a sealed box, and without some custom fab work to the tail light, its nigh on impossible to get that sort of volume without using fibreglass....

The main issue with an MDF box behind the tail light is the boot hinges getting in the way.

As for the amp, yeah it can be mounted behind the passenger tail light, the mount takes about 2hrs to make. I may chuck some pics up tomorrow if I get a chance of how I done my previous mount.

I'll stick with a sealed box then, and keep it slim enough so it clears the boot hinge. As stated, I'm not going for massive bass, just an added boost to the music only a sub can add.

Pics of how to make the amp rack would be awesome. I'm guessing there are some lugs that can be screwed into. I have access to heaps of aluminium (Aluminium welder by trade) so fabricating something should be simple enough!

how do fibreglass sub boxes perform? also anyone tried mounting an 8 - 10" in the parcel shelf (theres a disc shape on the passenger side)?

..... also anyone tried mounting an 8 - 10" in the parcel shelf (theres a disc shape on the passenger side)?

Word on these forums has generally been that its illegal to cut the parcel shelf, and anything after a TE has a flat space but no cut-out - apparently TE had a hole blanked-over with a tin plate (so assuming would be "more legal" to add a sub in the TE).

There was a Diamante wreck at a self-serve wrecker in Sydney with a parcel shelf sub, but it was a large panel taking most of the space between the 6x9's - had a lidded storage space on drivers side of the actual sub. Also, that car had a lap-sash centre rear seatbelt, cos the sub panel took out where our retractable seatbelts would be mounted to parcel shelf. As of yesterday, someone had taken the sub out - probably with a crowbar by the look of it, destroyed the trim panel (broken clean in half), and the sub amplifier in the boot was just a scatter of circuit boards......

from what i understand cutting into the rear parcel shelf is legal so long as one doesnt remove any child restaint anchorage points and reinforces the hole so that it is as strong as before (truth be known a circular hole in a structural member actually adds strength... think aircraft wings ribs)
but yeah in the magna' the restaint point is mounted on that disk so engineering is required

but what if one were to cut multiple 1" holes into the disc and mount the sub underneath? any thoughts?

I'll stick with a sealed box then, and keep it slim enough so it clears the boot hinge. As stated, I'm not going for massive bass, just an added boost to the music only a sub can add.Check out Strahtfield for the generic 1cu.ft sealed 12" enclosures. Perfect shape to fit in the corner of the boot. Mine clears the boot hinge by less than 2cm.


Also, that car had a lap-sash centre rear seatbelt, cos the sub panel took out where our retractable seatbelts would be mounted to parcel shelf. You mean lap-only seatbelt. Lap-sash is what all 5 seats have in Magnas.

Link to said Strathfield box? We don't have them down here. Just Autobarn, Supercheap, Jaycar and JB-Hifi. Tassie sucks some times!

Check out Strahtfield for the generic 1cu.ft sealed 12" enclosures. Perfect shape to fit in the corner of the boot. Mine clears the boot hinge by less than 2cm.

On the other tact, now I'm thinking of putting a 12" sub up against the back seat, sub on one side of the ski port and amp on the other side (blue Jaycar Response 4x50WRMS).

I'm guessing as long as I get a pre fabbed sub box with a slanted back on it, it'll fit snugly up against the back seat. How do I secure it? Same with amp. I'm not fussed with screwing straight into the back seat. Just seems dodgy to me.

How have other people done this? I'm guessing I'm not the first to have this idea/setup in their Gen3's so I don't mind poaching other peoples creative talents!

And finally, how does the sound change with the ski port opened up? Better or worse? I've never had a sedan with a ski port before!!

Cheers, Greg.

P.S. I thought it would be better to add onto my existing thread than to start another one!! *lol* Courteous, aren't I? :eek2:

On the other tact, now I'm thinking of putting a 12" sub up against the back seat, sub on one side of the ski port and amp on the other side (blue Jaycar Response 4x50WRMS).

I'm guessing as long as I get a pre fabbed sub box with a slanted back on it, it'll fit snugly up against the back seat. How do I secure it? Same with amp. I'm not fussed with screwing straight into the back seat. Just seems dodgy to me.

How have other people done this? I'm guessing I'm not the first to have this idea/setup in their Gen3's so I don't mind poaching other peoples creative talents!

And finally, how does the sound change with the ski port opened up? Better or worse? I've never had a sedan with a ski port before!!

Cheers, Greg.

P.S. I thought it would be better to add onto my existing thread than to start another one!! *lol* Courteous, aren't I? :eek2:

ski port open...more bass into the car..hell of a lot louder! Its the same with why somepeople dont have 6x9's in the parcel shelf...more bass into the cabin!

Some people have surprisingly used velcro of all things and thats worked, others have attached a strap to each side of the boot to hold down the subs...me? i just sit it down...hasnt moved yet! lol but i think that coz its too damn heavy to budge! lol

I might have to leave the ski port up all the time. 3 kiddie seats takes care of that!

On that note, to get some air movement from the sub into the cabin, can I fit 6" speakers into the parcel (purely as 'fill sound' running off the HU) and the venting around the sides of the speakers get the sub noise coming through?

Hope that makes sense!

Cheers, Greg.

Have you figured kiddies' hearing into the calculations for this sub?

Yes, it's called common sense and the volume dial.

I'd only have it cranked when I'm in the car alone (driving to and from work pretty much). These are my 'me' times, and I'd like to listen to my music!

Some people have surprisingly used velcro of all things and thats worked, others have attached a strap to each side of the boot to hold down the subs...me? i just sit it down...hasnt moved yet! lol but i think that coz its too damn heavy to budge! lol
Why is that surprising? The dual pioneers I had just got stuck between the wheel arches nicely and didn't move, but my old sub was velcro'd, and after a month or two of being velcro'd in I had a hell of a time getting it out again, proper automotive velcro sticks like you wouldn't believe!

Note: Don't use it in Lancers, turns out the carpet in those cars can't take the weight of the sub and ends up sliding around with the sub box, discovered that in a mates CE. Yet to have such an issue in a Magna/Verada lol

Can anybody find the link for making speaker baffles for the front doors of Gen3's which was a 2 page print out? I saw it before but didn't save the images. Stupid me! :(

Can anybody find the link for making speaker baffles for the front doors of Gen3's which was a 2 page print out? I saw it before but didn't save the images. Stupid me! :(

Here ya go!
http://www.aussiemagna.com/forums/showthread.php?t=63725&highlight=speaker+baffles&page=3

You, Sir, are a gentleman and a scholar! Thanks for that!! I tried to find it again but to no avail!

Cheers, Greg.

http://i32.photobucket.com/albums/d1/asylum83/Stereo/100_1499small.jpg

This is what I want to do in the boot of my TJ. Basically, how?

Cheers, Greg.

Me too - I only saw that pic a couple of nights ago and straight away I said that's what I want. Does the original maker want to sell his box or make another ??? :)

Will these fit in the front door with the right MDF baffle??

Audiopipe TS-V08

I've tried Googling them but can't find anything in English! Anybody know what the brand is like?

Ask Asylum, I'm 99% sure that's his boot install with the Type-X.

Ask Asylum, I'm 99% sure that's his boot install with the Type-X.

Correct but he got it all done by a Pro.
Very doable at home with fibreglass. Will take a week or two but anyone can do something like that.

Damn, looks like I'll be breaking out the tin foil and fibreglass over the summer! Anybody want to do it for me? :D