One the radio will not turn on even though it is pluged in so i went to walmart and bought a new wire adapter and now i do not know where the yellow wire that comes seperated from the wire adapter hooks up to in the 1987 chevy blazer

a car new has up to 10 radio choices new
or owners vast upgraded it. after or during 24 years.
no radio told old
a new. radio, (lost the manual to it ? ) we can't see it or P/N.
the impossible question but no I will post the base
F150 not the ranger version
EG1:
am/fm cassette not premium sound. new car choice 1.
has 6 speakers and 8 wires to them shared rear.
blk is ground pin2
bK/LG is ground pin6
pin 1 is memory wire lg/PK
pin 4 is cluster dim back ground (dial) lamps. Lg/bk
pin 3 main 12vc power bk/pk ( the online crude scans are not easy read, at pk PINK?

ALL TOP STORES SELL AUTOSOUND/TOYS SELL THE ADAPTER KITS, EVEN WALMART DOES.

Hi Bill, I believe the power problem is related to the Remote wire which should be blue or yellow. The remote wire is suppose the turn the Basslink on and off when the radio is turned on and off. The yellow wire is normally used for power antenna. Traditionally the remote wire is blue. You can use a Speaker level adapter and splice in with the L/R rear speaker wires, and the adapter will convert the speaker level to line level. The output of the adapter will go to the Rear speaker input on the basslink., Write back if you need more detail on the adapter.

Make sure that the ground you are using is solid and has a clean connection.

Do NOT Cut and Splice. Your local parts store sells an aftermarket radio plug in which connects to your factory harness and then you can splice in your radio into the new connectors ends that are labeled for what they go to.

Check this...

1992 Chevrolet Cavalier Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue


Hope helps (remember comment and rated this).

Radio 12V- white/yellow
Radio Ground black
Radio Ignition yellow/red
Left Front Speaker (+/-) blue/green - gray/black
Right Front Speaker (+/-) red/green - brown/black
Left Rear Speaker (+/-) blue/yellow - gray/white
Right Rear Speaker (+/-) red/yellow - brown/white

You will need a wiring harness for the model truck you have, plus a filler kit. The filler kit is what the radio will actually attach to and fill the space left by the factory radio. Follow the diagrams for wiring from the harness and the aftermarket radio. Generally, there are 8 wires to be connected for a four speaker system. In addition, you will connect a ground wire (black), a yellow wire (constant power), a red wire (this is to turn the radio on and off with the ignition), and a solid orange wire (illumination). Because you have a GM product you will also need an antenna adapter. All these things can be purchased at Best Buy, or WalMart.

The easiest way it to get a wiring adapter, any auto parts place or even walmart sells them in the automotive radio department. They plug into the factor harness connector, but you will still have to splice the adapter to the new radio harness, but the wires will be color coded the same at the new harness.

HI,
1999 GMC Sierra Truck Radio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

please rate my suggestion....

first of all you need to start over there is a wire somewhere not hooked up right these are some of the places you can get an installation kit Radio Shack, Walmart, Meijers, Best Buy, with these kits you just plug in to the old radio wires and the diagram that comes with it tells you what is what