Adding Rear 3rd Row Speakers

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GAINMOB

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I can turn sub off...when I take trips I will have 2-12's...I don't want the 3rd row bassed out completely...the subs will be off or down real low so it'll work

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KINGDELL91

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I can turn sub off...when I take trips I will have 2-12's...I don't want the 3rd row bassed out completely...the subs will be off or down real low so it'll work

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I might look into the factory Pillars that he had pictured i love the placement of them i would just have to swap out the factory speakers. I also like the amps under the seats i might have to check if that will work for me before i install it in my rear panel cause i would really prefer to weld a battery rack in there
 

GAINMOB

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I already have my amp in the rear panel...I was just thinking of how to put a battery back there

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KINGDELL91

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I already have my amp in the rear panel...I was just thinking of how to put a battery back there

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Im throwing my 4ch in there my DC 3.5k wont fit with i all that i have going on with it. but yeah get you some steel bars and weld it in there bro im just waiting to get money for new batts i had 3 HC 2400's going to switch to XS Power in rear and under hood. The one in the panel will always be there and there others i will move in and out as i please
 

KINGDELL91

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Here are the parts for my system:

Front Speakers:
Infinity Reference 6832cf (component speakers)

Rear Speakers:
Infinity Reference 6832cf (2-way speakers)

3rd Row Speakers:
Infinity Reference 1031t (1" tweeters)

8" Subwoofer:
Polk Audio db840

Amplifiers:
Kicker 08ZX200.4 (35w x 4; 2 of them) - This model has been discontinued now though, but you can probably still find them on eBay or something similar

The front and rear door speakers were direct replacements (size 5x7/6x8). For the tweeters in the front doors, which are part of the component system, I had to enlarge the stock openings a bit with a Dremel tool, but then they fit like a glove. For the 3rd row tweeters I just used a hole drill bit to drill the hole. I mounted the two amplifiers under the second row captain chairs. Even though the sub is an 8" sub, Ford uses a speaker that has mounting holes that are actually closer to 9" so I made an adapter out of a piece of MDF in order to install the new sub in the factory sub box.

One amp powered the front and rear speakers. The other amp powered the sub and 3rd row speakers. I also ran new, quality, speaker wire between the speakers and amplifiers so that noise would not be an issue. Everything sounds so much crisper, clearer and louder (although I don't really play my music loud). The bass is much better as well even though it is still an 8" subwoofer. The bass will not be heard 10 blocks down the street, but I wasn't looking for that anyway. I have been so impressed with the improved sound quality over the OEM system (and I thought the OEM system sounded pretty good) that I am considering getting satellite radio for better, clearer content since my upgraded system really amplifies the "flaws" in standard and even HD radio.

Below are a few pics...

FILE0020.jpg

FILE0024.jpg

rear%252520speaker%2525201.jpg

nice where did you ground the amps?
 

MauiBoy99

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For anyone interested, I'm doing this mod on my 2013 Expedition - add the OEM Lincoln speakers to the rear. The part numbers I got from the dealer for medium light stone colored trim (18978B) are:
  • 7L7Z-18978-DAB (LH $54.96)
  • 7L7Z-18978-CAB (RH $64.96)
 

DD31

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Thanks for the part numbers. This seems like a good addition to the sound system
 

Flexpedition

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For anyone interested, I'm doing this mod on my 2013 Expedition - add the OEM Lincoln speakers to the rear. The part numbers I got from the dealer for medium light stone colored trim (18978B) are:
  • 7L7Z-18978-DAB (LH $54.96)
  • 7L7Z-18978-CAB (RH $64.96)

Just want to make sure you know that these are the speakers ONLY.


They require the d-pillar trim / housing / pod for the speakers to mount to. This is the same trim where your 3rd row seat belts mount to.

Here are some example part numbers for those. They vary depending on standard/extended length and interior color.

* 7L7Z-40310-11AA dealer list price $184.57 driver side
* 7L7Z-40310-10AA dealer list price $182.85 passenger side

Google random picture:
2015-Lincoln-Navigator-3rd-row.jpg
 

MauiBoy99

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For anyone interested, I'm doing this mod on my 2013 Expedition - add the OEM Lincoln speakers to the rear. The part numbers I got from the dealer for medium light stone colored trim (18978B) are:
  • 7L7Z-18978-DAB (LH $54.96)
  • 7L7Z-18978-CAB (RH $64.96)

Unfortunately, these are the speakers + grilles only, as I found out when they arrived. The actual "D" pillar trim is <31010 IIRC.
 

12XLT

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I just bought a 12 XLT. I found this thread because I'm in search of a fuller sounding system. Reading the threads though, I may have less options because the first owner chose only the 6 speaker system (tweeters by side view mirror, speakers in front doors and speakers in rear doors). Where is the factory sub (I don't have) location because if I'm going to do this, I may as well install a sub as well.
 
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