I have a 1992 Saturn, took out the old radio, want to install a panasonic am/fm/cd player. I have a yellow wire from harness that is hot, and a black wire that is hot. I need to know how all these wires work together.

One wire stays hot all the time (yellow) and acc is only hot when the key is on. you should be able to find the wires in the original wire harness to the old radio with a test light or a meter.

I would suggest calling or find online Crutchfield. They have been car stereo experts for many years. They sell harnesses for just about any car allowing you to plug in your stereo directly to the existing harness. I guarantee they will know!

antena wire

The harness looks like what is depicted on this link: http://cgi.ebay.com/JVC--16-PIN-WIRE-HARNESS-FOR-CD-PLAYER-BLACK-BRAND-NEW_W0QQitemZ370214069143QQcmdZViewItemQQimsxZ20090612?IMSfp=TL090612198008r8862
This connector fits the following JVC Car Radio/CD/MP3 Players with 16 pin connection.
All wires are labeled.
Hope this helps....................sodeep

power wire should be a red wire

1992 Saturn SL2 Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Orange
Car Radio Ignition Switched 12V+ Wire: Yellow
Car Radio Ground Wire: Black
Car Stereo Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amplifier Trigger Wire: N/A
Front Speakers Size: 6 1/2′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Rear Speakers Size: 6 1/2′
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

Hi, im a retired ford auto elec inst. Tech so ill see if i can help you out. First, the orginal plugs, there are several radios and systems used. Was your oem radio am, am fm, or am fm tape? Next, if you had 2 plug that look similar but has 6 wires and the other has 8. Or does it have 4 wires. I should ask was your oem radio digital or analog? If was old school shaft type you will have a yellow, thats 12v + switched. Blue/red stripe is dial light, and a thick red wire which is ground. If its digital, look for the keyway on the plug. That is the top. First wire will be constant hot. Usually it a light green. Then the yellow, blu/ red, then another dail lightl ground then the power ant/ amp turn on wire. If you have a long plug and a small square one then you have fords premium sound. Which means there is a seperate amp. Lastly, if you have an 8 wire plug thats the speaker plug. If its 5 wire its a common ground system amd you will have to run new speaker wires or your new radio will have issues. Hope that helps

Your best bet on that one is to go to a place that sells car audio systems or even some autoparts retailers have them,and get the proper adapter harness already made up. A few more dollars but, a whole lot less headaches.

the easy way is to buy a 5$ harness from pepboys or a auto stereo store ask them a harness for your make and model car to hook up a after market radio that harness will plug into your factory harness also the new harness will give you a wire diagram telling you what wires are what if you dont know about what wires are what on your after market radio they are sometimes listed on the top of the radio its real easy most radios are red power yellow aux -only power when ignition is on and black ground speakers are most of the time one color for all negitive and multi colored for positive good luck I hope this helps good luck....

Yes, your red wire is for ignition, yellow wire is for battery and black is ground. The red ignition wire is for the radio to turn off and on with the ignition. The yellow is always hot, for memory.