Here's my predicament:

I have installed an amp for my components in the inner diameter of the spare tire, like many others have. However, I'd like to install a single sub with another separate amp. The problems that arise are these:

-Final setup will involve two amps and an eD box
-I require that the amps be "stealth."
-I'm leaning towards the eD box, so that space is taken, and I want to keep my spare.
-By installing an amp inside the spare, I lost the support for the center of the hatch floor.

I know one solution would be to mount the amps behind the panels by the rear speakers... But that looks like lots of work

So, the ideal solution in my mind is to devise an amp rack/hatch floor support all in one that can be place in the spare that holds 2 amps and supports the floor as the old piece of styrofoam did. Any creative thinkers out there? Get to work

 

ed box on one side.. and on the other an amp rack... simple as that... then i would put the jack and such in the spare tire and your floor will be supported once again... easiest solution i can think of..

 

I was in this very situation last year.......now with the Ed under floor sub box it needs the floor raised up a bit so the sub does not hit the floor,so you can build a false floor raised up 1.5 inches,this gives enough clearance between the spare tire and the floor to mount upside down screwed to the floor the amps,you will need to take the jack and such and put it in a tool bag,like $15 form SEars,wallmart,homedepot......put tool bag in the spare tire,tried it and it all fits in a bag perfectly,toss out the foam pieces and you are set.

Now that your amps area mounted to the board you can actually add some bling by cutting out the board so the internals of the amps are visable and put them under plexi,then make a filler piece so it is all stealth and covered,layer it all in suede and you are set.

 

So if I'm understanding this right, you did this:

1. Built a false floor to give the eD speaker clearance
2. Mounted the amps inverted from the false floor
3. Move the tools from the spare tire to a tool bag or whatever

Sounds interesting, I'll have to look at some threads for false floors. Any guidance on building one?

 

Use the stock floor cover as a template on MDF and trace it out and cut it out.then build a frame work over the outer edge of the sub box using 2x2s screwed to the floor,the drivers side will need to be taller of course since there will be nothign there anymore,also a good spot for the tool bag.frame up the entire floor with the 2x2 across for support and it will be super strong.

am prepping to build a new setup using similar set up but using my NINe.5 under the floor over the tire,nothing on either side of tire except a frame work for the floor and my Bassforms boxes on top of floor,plexi going in to be ableto view the internal of the amp and getting lit up with LEDs.

I will post up photos hopefully Saturday night of some of the progress.I ahve till Mar 7th to get it all done for a big car show.Was gonna do it last weekend but was sick as a dog all weekend with the flu.

So far my total cost for materials is $65 for the LED strips,$30 for the plexi,$45 for the MDF and screws,$30 for more suede,I already have the amp and subs and boxes but the cost for them was around $1000 total........dang stereo is getting expensive.....all together with deck,comps,boxes,subs,deadening,wires,and such about $2100-2300........never again will I spend so much for a car my wife gets to drive daily.......lol........she doesn't even crank it up......or so she says.....lol

 

It all depends on the dimensions of your amps.

I built a rack that is similar to what you've described. I've got two alpine amps: an MRP-M500 powering two eD SQ10s (these are in a stealth box to the right of the spare), and an older MRV-F307 powering my speakers.

The MRP-500 is roughly 10.5 inches square, and a little under 2.5 inches high. This fits far enough down in the spare that it touches the plastic **** in the middle that holds the tire in place. The MRV-307 is much larger, but it still fits within the outside rim of the spare. This sits right above the smaller amp, so that the bottom of the 307 is almost touching the top of the 500, but I haven't had any problems with heat so far.

I made a false floor using the factory one as a template. The left side is practically the same, but the right side accommodates my subs. The height of the amps in the spare is about the same height as the foam support that used to be in there. I am planning on adding some some MDF support blocks around it so it doesn't just rest on the amps, but it works for now.

 

I have dual amps

 

*bump from the dead*

I've discovered a solution to my problem at long last. Which is actually just in time, since I just received by eD stealth box yesterday! Pretty simple solution I thought of, too...

Make my circular piece of MDF I'm using as a amp mount sit high enough up in the spare that I can mount one of the amps on the underside of it, and the second on top! Seems obvious now that I've thought of it. I think I will just take my existing mounting board, and line the edge with a foam material to isolate it from vibration and to raise the mounting height, kill two birds with one stone!

I'll post pics when it's done, might not be till next week.

 

Pics plz! I'm thinking of the same thing, and am really interested in how this project turned out.

 

Working on it tonight.

 

Thanks, much appreciated . Funny how the simplest designs end up being the best ways.

 

OK, here we go! The set-up looks pretty good, disregarding my poor craftsmanship ;) Here we go!

What we're working with: Pioneer 4300F 4-channel amp, MA Audio M1889i monoblock amp, eD Stealth Box, 1 spare tire



The target goal: 16.5" diameter circle which is approximately the middle lip of the spare tire



My first circle cut was too wide, approx 17" Rather than sand off .5" all the way around, I cut down to the new circle



After much sanding and producing this very uneven circle, I got an acceptable fit



Ground location of my two amps (have had my single amp there for weeks and haven't noticed any noise issues)



New amp installed (other one is hiding below, forgot to snap pics of it!) Wires for the bottom amp slunk below in the hole at the top of the rack



Where'd it all go?! Top amp is perfectly flush with the floor board.



The wiring is a little messy, but I can live with it. I'm pretty happy with the results. Future touchups to it will include:

1. Carpet covering the amp rack
2. Vents to allow air circulation to bottom amp
3. Possible false floor so I don't have to put a padding between the floor and the eD sub
4. Maybe extra supports around the top amp and the floor so it doesn't have to bear any weight from objects in my trunk.

Enjoy, and let me know you anyone has questions!

 

Nice job. I did the same thing 3 years ago with my amp set up. I ended up welding a rack out of metal that mounts inside the spare tire. No issues with heat management at all.

 

you can probably make swiss cheese out of your circle to allow ventilation between the lower amp and the surrounding air. It might not be a lot, but it may be better than sealing the amp in the tight well of the spare tire.

Food for thought-

 

Beautiful. I thought of the swiss cheese concept too lol, wonder how that'll hold up? Does the top amp get enough air around it as you said its flush to the floor mat? Guess I'll do this after confirmation that its a functional build. Good job tho, very clean . Oh, and about your grounds, you have no problems with that bolt?

 

Forgot to add this in, but I was wondering about the positioning of the lower amp (if its secured to the board or just sitting in the tirewell) since there are no pics of it. Also, wouldn't the false floor take care of any support issues you had on the top amp, as well as solve the problem of the sub hitting the floor? Might as well do that and kill 2 birds with one stone .

 

Yes, the false floor would solve both of those problems, that was why I was considering it in the first place.. The lower amp is inverted and screwed to the amp rack (you can see the screws which are slightly too long in one of the pictures). I haven't actually tested it yet, since my family was asleep by the time I was finished with the build last night, so I'll see how hot they get today. I haven't tested the new setup yet, but I had my old amp on that ground without any problems, so hopefully this works too.

Oh, and I forgot to mention, I had to remove the thing that screws into the floor to hold the spare tire in place. I needed about an extra 1/4" to make the lower amp fit. You wouldn't need to do this if your amp is shorter than mine, but I had to.

 

*bumpin mah thread*

Has anyone with the eD box had a rattle that appears to be occuring between the box and the floor? I have the thin layer of deadening stuff it came with on the bottom, but if I crank it, it still rattles unless I apply pressure on it. Anyone experience this?

 

Yep it makes the floor rattle,that is why I got took mine out as it rattles louder than the sub,did not want to make false floor for just the sub.

 

I'm talking about below the sub box, not the trunk cover. Even with the cover off, unless I apply downward pressure on the box, it vibrates.