Stock AM/FM Radio Wiring

[MJKFabrication]

I got this radio off Ebay last week. It is in great shape. It apparently is the same radio that was available in 1980 and 1981 SR5 Sedans and Deluxe Sport Coupes, and 1975 through 1981 FJ40s. It came with two connectors (one two wire and one four wire), both had the wires cut a couple of inches away from the connectors. The radio didn't come with any labeling though. I spent the better part of the week searching here and the rest of the web for a diagram that showed where each of the wires went. I was finally able to find a site for early Corollas with a diagram that matched my radio model number.
So, for future Stock AM/FM radio wiring searches see the following;
Four wire connector,
Red = Right speaker postitive
Black with Red = Right speaker negative
White = Left speaker Positive (not used on early FJ40)
Black with White= Left speaker negative (not used on early FJ40).

Two wire connector,
Light Blue with Black = 12 v positive switched,
White with Black = ground.

 

[Coolerman]

I just uploaded some pics to my Schematics downloads page you might find interesting/useful. These are from right here on MUD: http://www.globalsoftware-inc.com/coolerman/fj40/schematics Scroll down to the end of the FJ40 schematic section. You will see a section titled Radio...

This has some hookup information for the radios in addition to the CB.

Enjoy!

 

[madinal]

Is there a source for radios that fit the cut out in the dash? I measured the hole in my '79 FJ40 dash as 6.5 x 2 inches and all the radios I see are 7 inches wide. There aren't many convenient places to put a radio other than the radio hole and I don't want to cut the dash.

 

[MJKFabrication]

Mine came with what was supposed to be the stock cover plate and it had to be trimmed 1/4" on each side to make it 6 1/2".

 

[MJKFabrication]

I just uploaded some pics to my Schematics downloads page you might find interesting/useful. These are from right here on MUD: Coolerman's Electrical Schematics and FSM File Retrieval Scroll down to the end of the FJ40 schematic section. You will see a section titled Radio...

This has some hookup information for the radios in addition to the CB.

Enjoy!

Thanks for that Coolerman, I found your stuff early on in my search but never got past my year or down to the radio files. Well done, thanks for taking the time to post up all of your great info.

 

[dgangle]

Is there a source for radios that fit the cut out in the dash? I measured the hole in my '79 FJ40 dash as 6.5 x 2 inches and all the radios I see are 7 inches wide. There aren't many convenient places to put a radio other than the radio hole and I don't want to cut the dash.

put it in a center console/security box like
Deluxe Stereo Security Console for Jeep Wrangler, YJ, Toyota Truck, Toyota LandCruiser FJ-40

 

[carlosfj80]

Where are the stock speakers in 1978?

 

[Fast Eddy]

Where are the stock speakers in 1978?

The one speaker is on a bracket that attaches to the right side (US model) of the glove box, outside the glove box between there and the cowl. You can reach up there and feel if it's there, or look into the glove box and see if you see two hex bolt heads or just holes. The speaker faces downwards. Sorry, but I don't have a picture.

I've got a spare that I'm kinda partial to.

 

[kiwidog]

Speakers? speaker

Behind the pocket inner panel, right hand side.

Thanks jb

 

[carlosfj80]

Thanks all, would like to keep it stock but with some sound but I am sure that pocket speaker is not going to work. I sit in traffic and like sports talk radio.

 

[Fast Eddy]

I sit in traffic and like sports talk radio.

It's ok when sitting in traffic, but I can't hear it over about 30mph. It's best for listening to baseball while wrenching.

 

[JohnnyC]

good speaker threads:
https://forum.ih8mud.com/40-55-series-tech/388146-speaker-option.html

https://forum.ih8mud.com/40-55-series-tech/259644-fj40-speaker-mounts.html

 

[BTUMAN]

Great thread. My speaker is there, just hunting the 78 AM radio. Cruiserpart shows they have one but they can't find it so now it's been about a month where I thought I had one. They just called me to give me the news.

Anyone have one they took out they are willing to part with?

 

[MoCoNative]

I found a Toyota AM/FM radio on Ebay that is very similar to the one at the top of the thread. If you find the right one, the original AM faceplate will fit. It seems there were to possible orientations for the radio knob shafts. One is wider than the other, but they both used the little metal enclosure that fits in the dash. For instance, an FJ60 radio is the same size box wise, but the knobs are too wide to fit the factory AM faceplate pattern. I have not gotten it installed, I looked up the part number on it once, it came from early pickups.

I was looking today and found this,RetroSoundUSA.com - Model One Radio with Mini Black & Chrome Trim Euro Faceplate

I think this will fit, if depth is not an issue on the early 40's with the cowl vent rod under the radio. The Crome trimed faceplate with the black unit would be a perfect match to the original units. Original units had chrome knobs on the back position and black knobs out front.

This may be our best solution yet. Plus this unit is rated at 50x4W RMS, which is a critical number. That is like a sustained wattage, and the higher it is the better you can hear the radio. I searched far and wide back in the 90's for the highest RMS I could find, it was a Kenwood at 40 RMS, however, it had great sound quality, peak power is simply that, peak spikes. The original units were pretty lacking in power, that is for sure.

 

[BTUMAN]

Ok. I see it now. Under the CB wiring you cam see the wiring for the radio for multiple types. Thanks. Great stuff.

 

[BTUMAN]

Mono Speaker Wiring for 1979 Radio

Question: The radio power and ground connectors I have (which I still need the faceplate for), connects right up to the power and ground wire harness on my Dec 1978. I believe my rig originally had a 1979 radio based on this fact. I don't have the original harness for the mono speaker. There are three terminals.

Which are positive and negative for the speaker, and what is the other terminal for? It is for a noise reducer (I saw something about this on another thread). See picture.

 

[aktundra]

Not a thread hi-jack, but this was my solution to upgrading the radio, but keeping a stock dash. Due to the angle of the photo, in the cubby, you can see the CB as well as some extra blue zip cord that I threaded in case I wanted to ad something later. A couple nuts, and a few bullet connectors, and the whole mod can be removed.

This started as a CB & stereo console, with two reach in cubbies. Added map lights, swaped out the CB for a 2M, and added oil & temp gages for a well lit "heads-up" display. the incline-o-meter is from an FJ6X (it's one of those things that shows up on your cc in the morning, when you take an Ambien, and decide to check out ebay while you wait to fall asleep)

So figured I would string some wire for whatever I added later......

 

[BTUMAN]

Not a thread hi-jack, but this was my solution to upgrading the radio, but keeping a stock dash. Due to the angle of the photo, in the cubby, you can see the CB as well as some extra blue zip cord that I threaded in case I wanted to ad something later. A couple nuts, and a few bullet connectors, and the whole mod can be removed.

This started as a CB & stereo console, with two reach in cubbies. Added map lights, swaped out the CB for a 2M, and added oil & temp gages for a well lit "heads-up" display. the incline-o-meter is from an FJ6X (it's one of those things that shows up on your cc in the morning, when you take an Ambien, and decide to check out ebay while you wait to fall asleep)

So figured I would string some wire for whatever I added later......

Send me your am radio and I will send you a delete plate . I need your faceplate and it looks like you have plenty of radio equipment. Now back to my question please....I can figure out the wiring if I have to but just not sure if extra wire is for future. CB hookup or what. I see in wiring diagram for cb it connects right up. I think that the connector for just the speaker has a dead terminal and if you got the cb it was live and killed the volume when mic was keyed up- but I'm just guessing.

 

[BTUMAN]

I determined that the horizontal terminal on bottom and the inside vertical is for the speakers. The other? Radio does not seem to be picking up anything. But I hear static and engine noise at the lower frequency.

 

[MoCoNative]

Do you know for sure if this radio works?????

My original AM tuner did not have any extra spades as I recall, in fact my 73 radio had bullet connectors for the speaker wire. But it did not work any more. All I could get from it was static. Something was bad internally. I had a very tech savvy electrician look at it. Without a curcuit diagram he was at a loss, all he could figure was that a component on the board inside had failed, but they all looked pretty special, not generic and finding it would be tough. He said it was a pitty, it seemed to be a very neat unit and very well built overall. They are pretty neat inside if you open one up.

As I recall the noise reducers were on the voltage regulator, right on the back of your alternator for your year and at the coil.