Trying to figure out if my 2011 XLT has a stock subwoofer installed. If it is there, it is not working. What is behind the passenger side rear panel? there is a "vent" in the very rear and front of the panel. Haven't tried to pull it off to look inside, but it lookes like there is some sort of black enclosure inside. Popped off the top cubby storage piece and tried to look down inside last night, but can't really see in there. I know on previous years the amp and subwoofer enclosure is in there, but not sure if that is what I am looking at...
What is behind this panel?
- Thread starter USMCEXP
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RI-Matt
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On the 07-present Expy's the subwoofer is on the drivers side. The passenger side houses the rear air stuff. Sorry 
Matt
Matt
Nathanialson 08
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That explains alot because I was wondering about puting an aftermarket sub in my truck whenn I upgrade my stock speakers since their is absolutely np room for a box and won't sacrifice my 3rd row seating for one, but was told their is one and it its made for the right side only now i'll look further into it now that I know it's not, thanks for the info RI-MATT.
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GAINMOB
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you can still have one behind the 3rd row....i do...i have 2 12's behind there with it up...
Nathanialson 08
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Ya I can do that but I perfer it hidden plus I like haveing the tiny space behind my 3rd row seating for groceries, so that rout wont happen for me.
GAINMOB
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check out my photo album...i have a down firing box and it allows me to put stuff (groceries/shopping bags) on it with the seat up...and if im buying a lot of groceries then i lay the seat down anyways...box stays and if needed...i put the eggs/bread/or whatever on it...
I took a closer look at it last night...yeah, it is the heater stuff behind there on the passenger side. There are even some metal hoses that get very hot (so I am guessing thre is a heater core back there also. So now I am going to rethink my amp and subwoofer install ideas. Maybe put the amp behind the driver side panel in the back. Just wondering about a stealth idea for maybe one 10" or 12" subwoofer in a sealed enclosure...
I have a 2010 and it has a 8inch factory sub in the panel on the drivers side rear. The 2011 is the same, do you have sync and rear dvd? if so you have the same set up.You will see the grill in that panel, its square. There is room for a 10inch small inclosure of about a 1 cubic foot or less. I took out the factory sub and made a mold from fiberglass. The enclosure was about 1 cubic foot and I only need .45 for a high power 8inch so I had enough room for my amps too. I used alpine pdx for ther size. 600 watts to the sub and 150 x 4 to the front and rears. I went with the 8 because I did not feel like cutting a new grill into that panel. I used the rockford 360.2 interface so my factory head unit with all the sync and rear dvd all work the same as before. The factory system sucked so I could not help but upgrade it, but I wanted to keep the head unit the same. If you have the EL JL audio makes a box that will fit behind the panel. It has a 10 in it , but no room for the amps. There is not much room under any of the seats because they fold flat when you put them down. I looked under the 2nd row and that was the case. No chance on the third row either. It can be done....Pop the tray and cup holder out of that panel and you will see the sub, or if you don't have one there will be a whole lot of room there. Good luck..
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Mine has the sync, no DVD, and no Sub. There is absolutly no room on the passenger side. A little room in the driverside. I picked up a used bandpass box that had blown speakers in it for $15 last night. I have two 10 Rockford Fosgates that I put in it. It fits behind the third row between the seat and the lift gate if I stand it up on its side, but the edge of the box comes up to just below the rear window. Not exactly what I was going for (wanted something stealth. But for $15, I will see how it sounds and maybe build my own shallow downfiring box down the road. Now have to decide if I want to tackle wiring the amp myself or pay to have it done. I have done many on my own in the past, but am leary of pulling the factory sync head unit and tying into the wires myself. Got a few quotes on having the amp I already own installed for around $100. Thinking about hiding the amp inside the rear drivers side panel.
Save the sync head and go with a rockford 360.2 interface or jl makes one too. You take the speaker wire and put it into the interface and it gives you front, rear, sub center plus on the rockford crossovers, 31 band eq's and a bunch of other features. Bass and master volume nobb too. For around $200 you can;t go wrong and you keep all the stock features of your sync system. Whats behind the panel if there is no sub? I wonder if they put the factory amp there, I thing mine is under the front seat.
It looks like a sub encloure behind the panel. It is a black "case" that takes up the entire inside of the rear passenger side panel. It must have some fans in it, can hear them runnig when I turn on the blower. Thre is also some metal hoses runing behind thre that get pretty hot, so there must be a heater core in there also. I id not see a factory amp, but have not pulled the panel to look. I think I am going to tackle the amp install. Just need to figure out how to get the dash apart and pull the head unit. Does anybody have the wiring schematic that would tell me what wires I need to tap into for the speaker line level converters, and th remote turn on for the amp? I just can't bring myself to pay over $100 for the labor...
Passenger side is a ac/heater for the rear. Drivers side panel it the factory sub location. Pop out the tray and cup holder and you can see down inside the panel. I don't know what would be back there? The best place to get the speaker wires is before they go into doors. Out of the head unit will go into the amp and the colors are diffrent. Plus its not right and left front and rear, they use signal wires. Ford uses the same color wires for so many things so it gets confuseing, I have the wire breakdown if you want. I will email it if you like. It gives you both sync and non sync. breakdowns.
I got the wire color breakdown from another member, but they were way off. Ended up pulling the door panels off to figure out the speaker wires. Now I need to find something to tie the amp's remote turn on wire into...any ideas? I already purchased a line level converter without the built in remote turn on, so I don't want to have to buy another one...
dcarr
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find a fuse thats on with the ignition, find the wire that is the radio power(not the constant power/memory power), or hook it to a switch so you can turn the sub off and keep the radio settings the same.(not have to play with bass/tremble)
I know you already got a line level converter, but if you got one with signal summing for turn on thats the best way to go. That way you avoid any amp turn on pop or a unwanted power off . You can find a rockford 360.2 pretty cheap on ebay and that thing would give you the world.....The factory head units have weak signals so a good line level with adjustment and some eq settings makes that weak signal sound much better..
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