Ported Trunk (?)

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06finSport

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Location
SC
I'm running a JL setup in my car with one w3 12" sub on a JL hd750.1 amp. I used to have a 2000 Lincoln LS with a sub in the trunk, but was disappointed at the quality of sound (or lack thereof) coming into the car. So I decided to "Port" my trunk. True, I was running a sealed box back there but after I put the 2 3.5" ports in the rear deck, a lot more bass was coming into the car. Fast forward to the m45. When the ski pass is closed, the bass is lack luster and I have to turn it up to get a cleaner sound. But when I open the ski pass, the bass comes through, and is a lot richer. Do you think I should do the same to this car as I did to my old Lincoln?Has anyone ever done this to an M45? I just don't want to have to cut the bass up so high that the truck rattles just to get it to sound decent in the car, especially when I could just port it or leave the ski pass open (which for whatever reason I hate doing.)

Any thoughts would be greatly appreciated

God Bless
 
QUOTE=Freddie's M45;10466]I always leave the ski-pass open but adding 2 ports to the top of the deck can only help. I may do this to my M this coming spring when it gets warmer out.[/QUOTE]I guess i have OCD or something lol but I hate to leave it open for whatever reason. I would have used the spot where my factory sub used to be but I have all the JL audio Cleansweep stuff mounted right there so its blocking the opening. I even ran across this:
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^Now, I wouldn't go with chrome ports and I would make certain everything was centered, but not a terrible idea.
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It would be a lot cleaner/neater but you get the idea lol. If worse comes to worse, I'll just have to move the cleansweep stuff to another location and see how the factory sub's opening works out (all that wiring lol)
 
Freddie's M45 said:
I may even just do 1 large port on the top deck. I also left my oem sub in-place for the movie sounds
Click to expand...

But where though? Behind the bose cover? That way the sound would bounce off of the back window and on forward throughout the car.

---------- Post Merged at 09:13 AM ---------- Previous Post was at 08:54 AM ----------

How about to the left and right of the bose setup?
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I'm not sure yet as I would have to remove the trunk panel that cover the rear deck to see what can be done. But it's just to cold to be working outside so for now it will have to wait for spring time.
 
I think it can be done. There are openings under the areas on either side of the Bose cover. And beneath that is either metal or just the trunk carpeting. I can let you know in the next couple of days with pictures and stuff. It's not so cold out here so I think I can go ahead and try to figure it out.
 
Cool, I will probably work on it friday and post pics, if not sooner. At least just to get an idea of what's under there and If all looks well, all I have to do is decide what size ports to put in that place and go from there. Maybe 2 4" or 5" round ports?

Oh and I'm running the JL cleansweep in my car. Is there anyway to make the aux input work? Do I have to tune my radio to a certain station? If that doesn't work, I may have to get the iSimple hardware and put it in place instead.
 
I haven't used the cleansweep, I now have the audio control with the remote bass knob.

If your talking about the input at the rear of the armrest you need to hit the CD button on the center dash twice.

1st time will be for CD, 2nd time will be for rear aux.
 
U sir are a life saver, aux input works just fine. Now if I could just get my center console DVD player to play and not keep ejecting the DVDs lol. I'll be working on the car probably tomorrow or Saturday to see how well I can port it. I'll most likely try and make the process a write up with lots of info and pictures.
 
We all know what the rear deck looks like-->
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Well I decided to cut some 5" OD(outside diameter) 4.5 ID(inside diameter) PVC pipe to get a feel of how big I wanted the port to be and how it would look and this is how it came out.-->
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Now obviously I won't have PVC just floating amongst the objects in my rear view mirror, but this about the size I think the ports should be taking into consideration the size of the ski pass' opening.

Now I don't intend to leave the PVC just sitting there, I want it to have a finished look. It will only be used to connect the top of the rear deck to the inside of the the trunk in one continuous pipe. If I could find some of these-->
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in a 4.5" ID then I will use them to finish the top of the rear deck. And if the bottom of the trunk is flat where the PVC comes through, then I will use another one of these ^ to give it a finished/flush look. If the trunk doesn't end up being flat in that particular area, then i will shape the PVC accordingly. Hopefully this will work. I've done this to a couple vehicles in the past (mine included). This one may be a little more difficult but I think it's worth a try. Hopefully, once I find all the parts, I will be able to provide a write up for this for anyone who may be interested.
 
That's what I was thinking myself. I went out last night and looked at it again, one MAY do the trick (maybe) but not certain how much pressure can be reduced and let into the car from just one. No one wants a big gaping hole back there either. The issue that could possibly come up on the drivers side, and I'll check today, is if you still have the factory Bose amp. Not sure how far back it sits and if it will be in the way of cutting the metal.
 
Thinking about going with this tube and this size possibly.-->
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The good news is that it doesn't look like there is that much metal in the way. I have an event for the kids in the morning so I may not get to it tomorrow but I'll have pics ASAP
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Well here goes. Surprisingly there were already holes in the sheet metal. I also use a 4" PVC coupling pipe which measured 5" OD ($2.87). Total work time was a little over 3 hours.
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I plan on buying a port with the same ID as the PVC tube to give it a finished look, but it honestly doesn't look to bad. I have to cut the carpet in the trunk to allow the air to flow through. I'll hop to it tomorrow. I could probably get away with 2 of them. I'll post pics of it in the day tomorrow.
 
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