Latley ive been toying with the idea of cutting a hole in the existing 10'' sub countersink in the parcell shelf used in the diamante's , has anybody done this and are there any con's involved with putting a 10'' free air sub in its place?
when mounting do i need to seperate the sub from the steel with a timber baffle?
whats the liklyhood of my parcell shelf vibrating itself senseless?
any pictures of your install?

Pretty sure I remember reading somewhere on here that you'll write your car off if you cut into the rear parcell shelf.

Yeah I've heard that too, something along the lines of since the parcel shelf is part of the integral chassis of the car, if you cut into it it's automatically a write-off.

A 10" free to air sub probably isn't going to achieve a whole lot, especially given the fact that Magnas run 6x9s standard in the rear. IMO the parcel shelf idea would only be worth it if you were to make a fibreglass box (attached from the boot side) and run a sealed sub.

And a solid layer or two of Dynamat would be an excellent idea.

why so? ,didn't the te's have a removable plate , where as tf onward's had no plate, whats the chances of getting pulled up on it?,like even if someone started asking questions, couldn't you just explane the reason why the shelf has the countersink/mount which is for a sub?

Your car is involved in an accident. Insurance assessors finds what you've done to the parcell shelf. You won't get paid out, and you'll get your butt kicked for driving an unroad worthy vehicle.

Removing the plate in the shelf is perfectly legal. Cutting the shelf isnt. I already removed that plate for when i was competing in SPL. Unless it is a free air sub like the two 18"s i have sitting here ready to go in, you wont achieve much!

i just wanted a little boost in bass, not really interested in 12'' sub box's rolling around in the boot, do you think for the minimal gain i would achieve in using the 10'' free air that i would be better off just running a 4channel amp and powering my existing spearkers in the stock locations?
the rears are just budget pioneer 3-way 6x9's ts-a6963e and fronts are pioneer 2 -way 6'' ts-g1643r
does adding an amp clear out some distortion at higher volumes when using the speakers in question?

Like i said IF you use the right sub then it will make a huge difference. The subs il be using are for free air. Im mounting them behind my seat on a mini wall. There will be no box. You will need a sub with low FS and high XMAX and MECH

An amp is always a good idea because at the most your head unit is putting out 22 RMS per channel. Which really isnt much. Even double that would see you a increase in volume, clarity etc

what size amp do you recommend i use to power my current speakers?

According to the specs they are 40rms. So you are running half power into them now. If you are looking for a budget amp this is perfect :)

http://www.jaycar.com.au/productView.asp?ID=AA0451&keywords=response+amp&form=KEYWORD

According to the specs they are 40rms. So you are running half power into them now. If you are looking for a budget amp this is perfect :)

http://www.jaycar.com.au/productView.asp?ID=AA0451&keywords=response+amp&form=KEYWORD

Thanks man, i know this threads starting to tangent but is the anything else that needs to be upgraded when using an amp, like are the battery and alternator sufficient for the job and is there anything to look out for? i know the principles for installation just not the jargon that is associated.

For that amp you wont need much. As long as your battery is in good condition you will be fine. Run the RCAs on one side of the car and the 4 ga power cable on the other side. Pretty straight forward

If that part was cut out in the factory then you are fine, you can use that and you will have the filler there to prove is how the car cam out

If the part was not cut out in the factory, on a technical note you can not cut it out later

NOW, if you were to say go to a wrecker and get yourself a filler plate from a TE, keep that, and then cut out the plate with a nibbler or similar and make it look as close to poss as a factory cut out, I think that most would have a hard time to prove otherwise. Add to this, lets face it, how many will look under the parcel shelf and say, "you slammed up the ass of that car because your sub hole was not cut by the factory"

I am fairly sure that for the insurance to be void, the thing that they are picking on needs to have contributed to the cause of the accident and as your cut out was factory and you have the plate to prove same, then I see no issue lol

Add to this, lets face it, how many will look under the parcel shelf and say, "you slammed up the ass of that car because your sub hole was not cut by the factory"

I am fairly sure that for the insurance to be void, the thing that they are picking on needs to have contributed to the cause of the accident and as your cut out was factory and you have the plate to prove same, then I see no issue lol

exactly

You may (or may not, i dunno what you've done sound wise in the past) be really impressed with some really good quality 6x9's hooked up to a good amp. I was amazed at the difference it made in my old camry.

I did this to my very first car when I got my licence. I cut the metal to fit 2 10" subs and then made a new parcel shelf out of MDF and carpeted it. It sounded pretty good but its not something id ever do again lol.