When was the Yellow light MPX stereo introduced?
 

I have asked this question before in an older topic but recieved few answers. My 69 Camaro has the Yellow light pushbutton stereo with the hidden multiplex above the glove box. It appears to be untuched and very original to the car. It also has a sticker with a date that fits the build date of the car. I have been told that the Yellow light was first introduced in 1970, I have also been told that is incorrect. CRG is currently researching this same topic and states it may have been introduced sometime around June of 69? does anyone have any info on this topic? Thanks.

Re: When was the Yellow light MPX stereo introduced?
 

L78Impala has a friend with a very correct Z28 which appears to have its original Yellow Light muliplex stereo.

Bill, can you provide the build date for Mark's Dover White
Z28 and the date on the radio itself?

Re: When was the Yellow light MPX stereo introduced?
 

After talking with Mr. NICKY Nova, he told me that his 69 Z has a build date of the first week in June 1969. He will try to look for the date sticker on the radio. I will keep you posted if he finds it.

Stefano, you missed a good MOPAR show in Belvedere.

Re: When was the Yellow light MPX stereo introduced?
 

You'll have to let me know what showed up. I did score an NOS Shelby gauge which I needed at 'Skips', other than that I hate to say that it wasn't worth the trip.

Re: When was the Yellow light MPX stereo introduced?
 

Mr. NICKY Nova told me that he did find a sticker on his radio. He said that he could not find an identifiable date on the sticker. Is there a way to decode the date/sticker?

Re: When was the Yellow light MPX stereo introduced?
 

Thanks guys, Most people would care less if it was original or not. The thing I enjoy most about these old cars is the research. The most important thing I have learned is that anything could have and generally did happen from the factory. I get upset when people pick my car appart at the local club meetings. Those people are usually the ones who have read all the books and allready know everything about these old cars. We all know books dont have all the answers and sometimes the information can be wrong. This is a great website, thanks again for the help guys.

By the way my car was built the first week of June.

Re: When was the Yellow light MPX stereo introduced?
 

I picked up an 3976060 AP deepgroove pulley at Skips Today.
"How much?"
SOLD! [img]/ubbthreads/images/icons/shocked.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

Rick,
There are a couple of frame off LS6's at a local (far West) dealer. One is a Coupe for $60,000.00 and the other is a Rag Top for $80,000.00. If I remember correctly both are advertised as numbers matching and correct cars.
I didn't see a single deep groove between the two cars.
Didn't all LS6 Chevelles come with deep groove pulleys? [img]/ubbthreads/images/icons/confused.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

Sorry to get off topic,but yes,they did.
All Solid lifter engines got them.
What Dealer are you talking about?
I am aiming to take my Chevelle to Willowbrook Carshow July 14th at Hinsdale South High School..

Re: When was the Yellow light MPX stereo introduced?
 

Rick,
There are two posi 4.10 gear codes listed for the 1970 LS6 one is listed as heavy duty. What is the difference between the two Eaton Rears?

Were the two codes interchanged and were they coded specific on a build sheet. That is standard 4.10 vs Heavy Duty 4.10?

L78Impala,
I do not know how to decode the radio sticker. Help is needed.

Re: When was the Yellow light MPX stereo introduced?
 

It is my understanding that the Yellow lights replaced the blue lights in late production, corresponding with the "tradtitonal" 70 model year. So 69 Camaros built after July, 69 should be yellow light. Of course, they would use up the blue lights in inventory, first, but I'll bet there are some late cars with blue lights. "for every general rule, there's an exception!"

Re: When was the Yellow light MPX stereo introduced?
 

They are for sale at the "I'd rather have the plague than buy a car from them" 200 words or less to describe dealer.

If anyone was into Shelbys you would get a kick from their 1967 GT 500 experimental convertible which has the rare self retracting Rollbar covered in the even more rare impact absorbing styrofoam! [img]/ubbthreads/images/icons/tongue.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

Steve

There are two 1970 Chevelle 4:10 posi rears.
CKK, and CRW.They are both equal.One is not a HD gear over the other.

In 1969 there are two codes for a Chevelle 4:10 posi.
KK, and the KQ which is a HD COPO 4:10 gear. I believe the KQ coded gear has stronger reinforcements internally.

I can't believe Volo has non authentic parts on it's LS-6's??? [img]/ubbthreads/images/icons/shocked.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

L78, According to this website http://WWW.Chevelles.com/radiotech/database.html The date is in the model number, but it is only the year. For example if the model # is 91BFM2 this means it is a 9=1969, 1=chevrolet, B=B body or full size car, FM= AM/FM stereo pushbutton with hidden MPX, 2=Second design run. My radio has an aditional sticker with a date of 5/14/9 that the website has no information on. Thank for the help guys.

Re: When was the Yellow light MPX stereo introduced?
 

Jerehiah,
I will pass the date info on. I will confirm if there is a date code. Also were the month / day / year separated by the forward slash in your indentified date? Let me know.

Re: When was the Yellow light MPX stereo introduced?
 

Have you seen situations where the build sheet shows CKK and the rear is coded CRW or the other way around? Also, I thought that these codes were for dealer installed gears?

Thanks [img]/ubbthreads/images/icons/crazy.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

The main transistor in the back has a date code. Can't remember if it is visible on that model.

Re: When was the Yellow light MPX stereo introduced?
 

Steve
Getting way off this threads topic.I am taking this to Email.
Rick [img]/ubbthreads/images/icons/smirk.gif[/img]

Re: When was the Yellow light MPX stereo introduced?
 

L78, No the date is not seperated by the forwad slash. I am assuming it is a date because of it fitting the build date of the car perfectly. Maybe that 9 means 79, Its a long shot but it could be possible that the radio was repaired on 5/14/ of 79? The sticker does not say Rebuilt it just has what apears to be a date. The car was assembled on the first week of june. Thanks for the help.

Re: When was the Yellow light MPX stereo introduced?
 

Can you post a picture of the sticker?

Re: When was the Yellow light MPX stereo introduced?
 

Jeremiah,
Sorry, I was not trying to imply that the 9 was for "79".I asked because my friend said that he found a five digit number after the radio serial #. The five digits were also larger font size. The number as listed was 1059. we were thinking that if this was a date code it would put the date at October 5th 1969. which would probably mean that this was not the correct radio for the car. But right now we are just guessing on the date code.

Re: When was the Yellow light MPX stereo introduced?
 

I still have the Blue light multi-plex stereo that I pulled out of my first 1969 Camaro back in 1979.

The round transistor on the back reads: Delco GM
DS 50
6848

The white tag on the right side reads: Service Model No 91BFM2

Serial NO 31FSC-1118
Product No 730 7331

Delco Radio Division G.M.C. Kokomo, Indiana

The part number on the buttons is 7306391

There is a number above the left control Knob 730 7746-1

Now if I could only find the Camaros Vin number?

It was a neat Camaro: Silver with Black vinyl top and Deluxe interior.

Fiber optics
350/25O HP
Saginaw 4 speed
10 bolt posi
Multi leaf springs
Dual exhaust
Tac/Gauges
Power Window
Power Steering
Power Disk Brakes
Fold down rear seat
Rear Defrost
Axu. lighting package
Bright trim group

I purchased it from the original owner who bought it off the showroom floor. He told me that it was a real Z28 and that he traded a Boss Mustang in on it, once he got his doors blown off on his first encounter with a Z28.

It was a bargin at $700.00 as it only had just over 100,000 original one owner miles on it back then.

Re: When was the Yellow light MPX stereo introduced?
 

So that's the car that first got your blood pump'n. I see it has only gotten better from there.

Re: When was the Yellow light MPX stereo introduced?
 

My Uncle gave me his 1964 Impala SS 283/pg Rag Top. I wasn't old enough to drive but he figured I could have it back in shape about the time I would start driving.

The first car I purchased prior to getting my licence was my late Cousins 1965 Plymouth Satellite which had a 426 Race Hemi installed when he had it.

The 1969 Camaro was next.

Re: When was the Yellow light MPX stereo introduced?
 

I dont believe I could get a clear picture without pulling it from the car. My only real concern is that the Yellow light is correct for the time my car was built. I am very pleased with everyones help, Hopefully CRG will narrow down the changeover date within a couple of weeks. Here are the rest of the numbers anyway. Serial#31FSA, Model#91BFM2, Product#730733 and 9044 is after the model number. The sticker in question is on the opposite side of the radio, After looking harder I could see "CONT" on the same sticker with the 5149. Any idea what Cont means? There is an original 69 RS/SS at work with a blue light stereo, It has the same model#. It appears to be the same radio other than the light? Thanks again..