Stock Speaker Sizes, Locations, Pin Outs, and Harness P/Ns

[monopolizedinc]

This thread is to identify the stock speaker sizes and locations for MR2s. It will also elude to possible replacement sizes, and eventually we will add radio configurations and pin out diagrams for the different radios as well as harness part numbers. I will continually update this first post in the thread as data is gathered.

MKI

Speakers
All Models
- Dash - 4" T
- Doors - None
- Under Seat - Custom subwoofer box
- Rear Pillar - 3 1/2"

Installation Info
- Metra Harness P/N
- Scosche Install Kit P/N


MKII - 91-92

Speakers
- Dash - None
- Doors - 5 1/4" woofers, 3/4" tweeters
- Rear Side Panels - 2" ; Picture http://www.texas2s.com/temp/toyotarearspker.jpg
- Rear Stowage Compartment - one 5 1/4" sub

Alternate sizes/locations
- Doors will accept most 6 1/2" speakers
- Rear Side Panels will accept up to a 4" speaker

Installation Info
- Metra Harness P/N
- Scosche Install Kit P/N

Misc Info
- Preminum system amps located in drivers side rear panel under speakers, one amp for HU and one for sub

Picture of Amps http://www.texas2s.com/MR2Audio/Stock_Amp/IMAG0000.JPG


MKII - 93+

Speakers
- Dash - None
- Doors - 5 1/4" woofers, 3/4" tweeters
- Rear Side Panels - 3 1/2"
- Rear Stowage Compartment - two 5 1/4" subs

Alternate sizes/locations
- Doors will accept most 6 1/2" speakers
- Rear Side Panels will accept up to a 4" speaker

Installation Info
- Metra Harness P/N
- Scosche Install Kit P/N

Misc Info
- Preminum system has 3 amps, 2 located in drivers side rear panel under speakers, one amp for HU and one for sub and one sub in the passenger side rear panel


Spyder

Speakers
All models
- Dash - None
- Doors - 1" Tweeters, 5 1/4" Woofers
- Rear Side Panels - None
- Rear Stowage Compartments - None

Installation Info
- Metra Harness P/N 70-1761 (harness into car); Picture http://www.texas2s.com/temp/toyotaharnesspinouts.JPG
- Metra Harness P/N 71-1761 (harness into HU); Picture http://www.texas2s.com/temp/475febd0.jpg
- Scosche Install Kit P/N TA2047

[monopolizedinc]

Originally Posted by twtkid

figured I would add this info to the sticky so it doesnt get lost

Part numbers for all those who wanted to get the better 93+ tweeter covers:

Right : 67491-17041
Left : 67492-17041

Partznet.com (conicelli) has them listed under Door - Outside mirrors - Inner cover- Inner cover Right/Left 1993 - 1995. They are $11.43 each. They come with the female plastic fastener (brown) so make sure that you take that off before you install them. Also, retain your old foam and use it to fill in behind the tweeter to get rid of wind and road noise.

These covers are much better in terms of both fitment of aftermarket tweeters larger than .75" and sound quality. There is a great difference between the crappy plastic of the 91-92 cover and the wire mesh that the 93+ uses.

[monopolizedinc]

Courtesy of user ac4000 (Adarsh) from board.mr2faq.com

So, got yourself Metra part no. 70-8112 and the connections look wrong? Yep, you've got yourself a '91 premium system. This unit appeared on the earliest MKIIs (possibly some '92s, but I haven't heard of any) and, unfortunately, to install an aftermarket system, you can't just plug and play. (The connection/wire color chart is below for those of you who want to jump right in.) You have two options:

a) You can wire in a new head unit (HU) and keep the existing amp (easiest and, since the premium amp is decent, you'll get good sound--my aftermarket HU makes a bigger difference than I thought it would); or

b) you can rewire everything, bypassing the factory wiring.

Here are instructions for a (for b, you're on your own). Make sure you use a HU with preamp (RCA) outputs--DO NOT send high current output to the amp! I'll assume you know how to dismantle your dash and pull the old system, so this only describes the wiring:

1. Get a 14-pin harness. You can pick one up from any electrical supply store. If you can't find a 14, you can use a 12, just attach the RCA connectors to the car side and you'll free up five pins on the harness. I picked up Mar Vac's part no. 11-06012 (made by Propart) for $4.39 (it's called a "Round Multi Pin Locking Connector"); it's a 12-pin, so I just skipped the BEEP and MUTE wires because my HU doesn't use them.

2. Get a short run of standard RCA stereo cable (or pick up four male RCA jacks, if you prefer). This will cost a couple of bucks.

3. Cut off the factory harness, leaving a little bit of wire in case you want to use old system again someday (save the old part). NOTE: The factory side includes two green wires and two brown wires--tag them so you know which ones go to which pins before you cut the harness!

4. Your "chain of connections" will look like this (the HU harness is what plugs into the back of your HU):

[CAR WIRING]-----[splice]-----[14-pin harness M][14-pin harness F]-----[splice]-----[HU HARNESS]

5. Connect factory wires 1-14 to wires 1-14 on the 14-pin harness. This just makes things easier to keep track of.

6. Connect your HU harness wires to the 14-pin harness as follows (note also that the 14-pin harness pin numbers correspond to the factory wiring, and I've provided the factory wire colors, if you decide to just wire this stuff directly--remember L = blue, GR = gray, and P = pink, in Toyota BGB parlance):

14-pin harness pin number (factory wire color) --> HU wire
1 (P-L) --> Amp/Remote Turn-On
2 (G) --> ILL+/Dimmer (+)
3 (L-O) --> +B/Constant Power/Battery
4 (B) --> MUTE
7 (B-R*) --> ANT/Power Antenna
8 (W-G) --> ILL-/Dimmer (-)
9 (GR-R) --> ACC/Switched Power
10 (BR) --> GNDL/Ground (Primary)
12 (Y) --> BEEP

* The BGB shows this as G-B, but on my car it was not.

7. Connect the remaining 14-pin harness wires to your RCA connectors. Remember that the center RCA pin is positive, so connect all the center pin wires to the appropriate wires on the 14-pin harness. Connect all the negative wires together and splice them to GNDS (pin 11) (five wires will splice together for this part). Working with RCA wires is a bit delicate, so you may find it easier to buy RCA jacks. If you do that, you can run some extra wire to split GNDS into four wires (one per jack). Here are the speaker assignments:

5 (W) --> FL+/Front Left (+)/White Front RCA Connector Tip
6 (R) --> FR+/Front Right (+)/Red Front RCA Connector Tip
11 (G) --> GNDS/Speaker Ground/Speaker (-)/All RCA Negative
13 (BR) --> RL+/Rear Left (+)/White Rear RCA Connector Tip
14 (L) --> RR+/Rear Right (+)/Red Rear RCA Connector Tip

8. Tape up your HU's high-level output wires so they don't cause any problems (you won't be using them, of course).

9. Plug your HU harness into the HU, connect the RCA plugs, plug the 14-pin harness into the one you've added to your dash and you're ready to rock 'n' roll.

If you later decide to reinstall the factory unit, pretend the part you cut off earlier is the HU harness and wire as above. You may want to attach four RCA connectors to make things neat.

Installation Pictures

Dash area with 12-pin harness spliced onto the factory wiring:



Rear of the HU with 12-pin harness spliced onto the HU harness and HU harness plugged into the HU:



(Note, I used a 12-pin, rather than a 14-pin, and skipped the BEEP and MUTE connections, since my HU doesn't use them.)

Send me any questions or comments via email and I'll try to help you out if you're stuck. Enjoy!

Cheers,

Adarsh

[DrakesKakes]

AWESOME!!!

Stickied......!

[TWBarrett]

With a small bit of modification, you can phenagle a 5 1/4 into the rear side panels of a MKII. I don't have any good pics of mine at the moment, unfortunately.

[monopolizedinc]

Originally Posted by TWBarrett

With a small bit of modification, you can phenagle a 5 1/4 into the rear side panels of a MKII. I don't have any good pics of mine at the moment, unfortunately.

whats listed above is what fits. you could probly get a 6.5 ora 8 back in ther with some work... its intent was to keep the noob questions down

[Mister2.2]

I think I put a 5.25 in mine pretty easy actually.

[lbridges]

I'd like to offer some input to the MK III data.

The woofers are 6-1/2" units, but come with the speaker as an integral part of the baffle plate. So, to replace the speakers you either have to destroy the OEM speaker and reuse the OEM baffle plate, or make a baffle plate yourself. If you make the plate yourself you can use up to the Eupo-size 6.5 (which are really like 6.75"). Most people make these out of MDF, but I'd also like to recommend finding a source of Corian or similar - it's a better product in every way for this function.

The tweeters are 1" as stated; however, many 1" aftermarket tweeters will require a bit of grinding on the plastic door panels to allow them to fit. I think (although have never tried) an aftermarket 3/4 tweeter would fit with no mods to the door panel. FYI, I run a set of 1" Vifa tweeters and had to do the grinding thing.

Next, the Scosche install kit results in a half-DIN pocket (which I find useless). A better solution is to get a fullsized DIN pocket (Corolla, Mustang, whatever), and add these two parts from Mr T: 86221-52060 and 86221-52050. They are snap-on spacers used in the 2000 MY Celica, and nicely fill out the space used by Toyota for later models having the wide dash opening double DIN radio/tape/cd headunit (same model headunit in my '02 MR2 is in my wife's '02 4Runner).

[mopwer]

I looked at my pin layout on my 93 with Premium sound and it is different from the 91. Anyone have the pin layout for the 93 Premium stereo? Crutchfied says I have to bypass the factory amps for the main speekers, but not subs. HELP!!

Greg

[mopwer]

After doing some surfing on this, I found that my 93 Premium sound uses a 15 pin connector. There is a harness available (PC9-411), but I have only found places in the UK that carry it. Anyone know of a state side supplier/distributer? Thanks.

Greg

[mopwer]

I think I found a harness on ebag!! Not the same part number, but a seller called paganaudio has it and it looks just like my 15 pin. I'm going to get one and try it. I'll let you know. Here is a link to their ebay store:

http://myworld.ebay.com/paganaudio

You want part number 70-8112, it will say Lexus/Toyota amp integration harness.


Greg

[mopwer]

Got it installed and it worked great! Only issue was that they didn't run a pin for the "illumination" wire. So I just cut that wire and splice directly into it but left enough so I could reconnect it if I wanted to return it to stock. Price was about $28 I think. If you want to salvage the stock wiring harness from the stock stereo, here is the pin layout as you are looking at the pin side.

7-6-5 space 4-3-2-1
15-14 space 13-12-11-10 space 9-8

1-Amp Turn On
2-Illumination
3-Accessory
4-Constant 12V
5-Mute (not used)
6-Left Front Amp input (+)
7-Right Front Amp input (+)
8-Power Ant.
9-Not Used
10-Telephone Mute (not used)
11-Ground (Ground here or on chassis)
12-Signal Ground (- for all speaker amp inputs)
13-Beep (not used)
14-Left Rear Amp input (+)
15-Right Rear Amp input (+)

Directions are basically the same as above, except with this configuration. Good luck!

Greg

[Panic]

Question, Which models did the Premium Sound System come in? I assume Turbos. I have a 93 N/A. Also how is the factory Speaker wire, Would I be okay to just replace speakers or is it a must to upgrade wire also?

[Panic]

NE1 want to share there ideas or tell me what they used for a system? I want to use the Stock Speaker Setup. If I can use a bigger Speaker but still keep it in the stock locations I will. I want sound Quality, Do not care about the neighbors hearing my music, Do not want my whole car to rattle every time the Bass Hits. Just want to be able to hear the music when I gots the tops down.

I know some of you guys have the perfect stereo. Give me some ideas!

[monopolizedinc]

you will be fine replacing the factory speakers w/ aftermarket in your 93 if you have 2 woofers (one in each storage box) you have the "premium" sound if i recall correctly

[Panic]

You state that the Doors take Woofers, correct, I guess I assumed they would be full range speakers, Woofers in the Door, Tweeter in door, woofer in back and full in side?

[monopolizedinc]

you can use a full range in teh door w. out issues but its stock a woofer, so using a woofer will aid in keeping the sound balanced

[Don't Worry, It's Just Me]

it says for a MKII that the tweeter can hold a 3/4", would be be possible to get a 7/8" in there or is that pushing it?

[monopolizedinc]

anything can fit w. a little work

i have a set of 1" kickers in my sail panels but it took some work like i said...

[Don't Worry, It's Just Me]

and it looks perfectly fine???