My JBL Synthesis Overhaul

TigerTownAlum

New member
* My reason for doing this write up was to contribute what bit of knowledge I have acquired through my project. I love how t4r.org is such as wealth of knowledge and want to do what I can to contribute. Thanks! Hope this helps!

In early 1012, I started a thread talking about my problems with the JBL Synthesis system that was included in my 2005 Limited. It can be seen here: Problems with JBL 10 speaker system
After a big hold up, I was finally able to do my install and revamp the JBL System in the 4th Gen. In the meantime, I have posted in the "What did you do with your 4Runner today?" My sub project. This will build off it with a full revamp of the sound system. I also picked up a set of JL Audio C2650 Evolution Components for the front because I got them for a pretty good deal from T4R.org member hlpressley. They get real good reviews and it was a deal I couldn't pass up. The materials I ended up using:

- JL Audio C2650 Evolution Components (Fronts)
- Infinity Reference 6030cs Component speakers (Rear Components)
- Autotek Mean Machine M1400.4 4 channel Amplifier (Powering all components... under passenger seat)
- Alpine MRP-M450 Mono Subwoofer Amplifier
- Scosche e2 EWDB2 Power Distribution Block
- Tsunami DB8012 Ground Distribution Block
- Metra 70-8113 (using this and taking out Axxess TYTO-01)
- 100 ft. of Pyle 12 gauge speaker wire
- Generic Inline fuse holder
- 1 JL Audio 250 ANL Fuse
- 2 JL Audio 150 ANL Fuse
- 1/0 Gauge Power wire from battery --> Scosche e2 EWDB2
- 1/0 Gauge Ground wire from ground --> Tsunami DB8012
- 4 Gauge Power wire from Scosche e2 EWDB2 --> AMPS
- 4 Gauge Ground wire from Tsunami DB8012 --> AMPS
- 1 Set of Scosche SA69 6x9 speaker adapters for fronts
- Speaker Tweeter Adapters from car-speaker-adapters.com (These were good speaker adapters that came in use for the front tweeters. They took a little modification, but that was to be expected bc all tweeters aren't going to be the same size.)

First was to run the power wires from the battery, through the inline fuse under the hood, to the middle of the center console. The point was to have both of the distribution blocks (power and ground) concealed under the center console, then split to the respective seat. I put the Sub amp under the driver seat and the 4 Channel under the passenger seat.

IMG_20121227_114755.jpg~original

Zero Gauge wire I used to run from the battery, into the inline fuse, through the firewall boot, and to the the Power Distribution Block

IMG_20121227_114300.jpg~original

Pics of the amps under the seats. They are tight fits, but it works and the seats still move back and forth. 1st one is with the seats all the way up.
(SIDE NOTE: Also, I love my Toyota 4Runner Footwell Led Lighting Mod courtesy of JA's Footwell writeup.)

IMG_20121227_114459.jpg~original


IMG_20121227_114607.jpg~original

And now with the seats all the way back which is the way they stay for the most part. As you can see, they are concealed and neat. Running the wires to the amps was probably one of the most difficult parts of this install, but in the end… it was worth it.

- After running the power, remote, and ground lines to the amps, I decided to work on the doors.

053004101copy_zps71e8992f.jpg~original

I used this handy diagram to disassemble the doors. The doors can seem real tricky, but you just need to be confident and give them a good tug to get the pop clips loose.

Next, to run the speaker wires. This was probably the hardest part of the project, but it was very worth it bc I used good quality 12 gauge wire. It's just something about tapping into the factory wiring that doesn't seem as good of quality as running dedicated lines. All you have to do is remove the 10mm bolts holding the door boot to the door and use a handy coat hanger to pull the speaker wire through.

IMAG0526_zpsfe5dd9cf.jpg~original


IMAG0528_zps81d454aa.jpg~original

created a loop to snag the end of the wire and tapped it up tight so it wouldn't snag anything in the door boot.

IMAG0527_zps7dcdf111.jpg~original

Wire pulled through. Repeat steps for all three remaining doors. FUN!

IMAG0511_zpsd283ad0d.jpg~original

Quick Shot of the bracket installed.

IMAG0514_zps8452e4cb.jpg~original

6x9 bracket I used. This bracket required some dremeling as well to make the JL Audio components fit. They were supposed to fit the speakers, but needed a little bit of fabrication.

IMAG0512_zps053caad6.jpg~original

The Tweeter installed in the adapter. The adapter needed to trimmed so the tweeter would fit, but the plastic is really easy to dremel so it fits like a glove.

IMG_20121223_115911.jpg~original

For the rear doors, It took some customizing. I had to cut a hole to fit the tweeter fom the rear set of Infinity components.
It can get messy which is why I had the vacuum there… keep my lady happy.

IMG_20121223_115920.jpg~original


IMG_20121227_114618.jpg~original

I really liked the way it turned out looking. Pretty solid. Plus, It freaking loud!

IMG_20121227_113924.jpg~original

Front Crossovers... This is the only thing I am debating on cleaning up on the install. Right now, they are just wedged in the armrests, but it doesn't look terrible to me.

IMAG0550_zpscd26ceae.jpg~original

Badges included with front tweeters that I put on the front tweeter grills. Really glad with the way this turned out.

Now on to the Sub project that I actually completed a while back. I wanted to accomplish a similar result as Ark

I used the following link to dismantle the interior and get to the sub/storage area itself. How to Remove the Navigation ECU from a 2003 Toyota 4Runner

I then followed Ark Swamp Rider's instructions for installing the sub and amp, running wires and such. Replaced JBL Sub/Added Amp: Install Pics/Info
I ended up using a JL Audio 8w3 v3-4 so I ended up needing to use a spacer ring, but I am happy with the way it turned out.

IMAG0420.jpg~original


IMAG0419.jpg~original


IMAG0418.jpg~original

Good amount of cargo space which I am definitely happy about… (Especially the "important things")

IMG_20121227_114535_zps6f757637.jpg~original

A picture of my Headunit. Pioneer Avic-X930BT.
I had the Avic installed with the factory amplifier using the Axxess TYTO-01 Adapter. I wasn't crazy about leaving this adapter wired to the power, constant, remote, etc. when I wasn't going to be using the factory amp for anything so I took it out as well. I used the Metra 70-8113 wire harness which I was able to get off ebay for about 7 bucks. The way I had this harness wired up was straight connecting the constant (yellow), 2 blue (Amp remote & Antenna remote), & ground (black). I didn't connect the illumination wire bc I wasn't sure where it should connect. Plus, I've read that it is not necessary and the unit will work just fine without it.

**** As you could probably imagine, I don't need the Axxess TYTO-01 because I am not using the factory amp. If anyone would be interested in purchasing this adapter, I would like to sell it.****

There are a few things I would be interested in improving on my install, but for the most part it looks great and sounds awesome!
- I was interested in finding a good place to mount to mount a 3.5 mm Aux Jack. Any ideas of locations that would be good?
- I am going to try to make a cargo box for the trunk. The idea came to me when I saw Dusty Driftwood's Custom Cargo Box & jbmccul's build thread. My cargo box will have some modifications and customizations that will make it a little different as well as an element that will tie into this project. I will be working on this in time to come, but in no way am able to devote much time to these projects so it will take a while I'm sure.

Let me know if there are any questions and I will do my best to share my experience and add to this thread to make it more informative. Hope this helps!
 
Register to hide this ad
Nice job! I'm looking to do a similar install in the near future, and was wondering: how thick of a spacer ring did you need for that sub? Does the new sub clear the factory grill with the spacer?
 
What factory head unit was originally in there? Was it just the JBL, or JBL w/ RDS, or Navigation. The reason I ask is, I'm in the process of upgrading my whole sound system in my 04 4runner se, it has the JBL withOUT RDS and I can only seem to find dash kits for non-JBL or JBL w/ RDS, which hu did you have and what dash kit did you use? Thanks.
 
Great write-up. I am in the process of doing the same, already removed the bolts in the doors to see how I was going to fish the wires, but then my friend dropped a rim on his toe so we put that off for a while..
 
I avoid using metal wires to feed cables, use a long ziptie and drill some holes to it, tie a small wire to make a loop. I call this my cable runner, cheap and safe and wont scratch anything up.
 
Hows the sub sound ? Few people have told me the box is just to cheap to run a decent sub.

Whats your verdict , any rattles or issues?
 
How's this system effect your battery? Any dimming issues or anything? Also, what spacer did you use or make?
 
Last edited:
Nice writeup and work! My only criticism would be to hide the crossovers since it makes it look "half done".

I did something similar by gutting the JBL setup. I went with a Pioneer AVIC, Alpine PDX5, 4x JL C3, and a JL 8" sub in the stock location. I also had 4 external crossovers to deal with as well, and ended up doing it the pain-in-the-ass way by mounting them under the seats with the Amp, and XM tuner.
 
Thanks for the list of parts, I used the same tweeter adapters and fit my MB Quart tweets like a glove; after alot of grinding it out lol. Still it worked great! That guys got a good product for sure. I just my install and put my crossovers in the door compartments with the vents at the top.
 
What factory head unit was originally in there? Was it just the JBL, or JBL w/ RDS, or Navigation. The reason I ask is, I'm in the process of upgrading my whole sound system in my 04 4runner se, it has the JBL withOUT RDS and I can only seem to find dash kits for non-JBL or JBL w/ RDS, which hu did you have and what dash kit did you use? Thanks.



Good question, I have the non-RDS JBL and am trying to figure out what to do too.


Sent from my iPhone using Tapatalk
 
Not a bad job. I also would have hidden he crossovers. They should fit behind the door panels since mine did. And mine are bigger JL 3-way ones from 15 years ago...
 
Nice...wish I had he time and money for a system upgrade. Especially like the sensitivity/ specs on Infinity Reference speakers.After driving a Lincoln for years (also had factory JBL system)and going to a T4R as a daily driver I really notice the noise level in the 4 Runner. My cellphone app. measures about 75 dB. average...mostly wind noise,some tire,some road some other vehicles. There were times I'd think I had a back window down because it was so noisy in the Runner. Maybe because of all the glass in it and typical truck like aerodynamics.
I think I'd have to dynamat the whole inside before I upgraded the stereo. Maybe in another life:) Great job!
 

Members online

Forum statistics

Threads
278,312
Messages
3,554,085
Members
248,016
Latest member
Advally Service

Trending content

Back
Top