radio wiring/quick ?

[onecustom73]

On the back of my radio (1973 chevy  3/4 ) there is a connector that goes in to the back of the radio for the rear speakers,ok well from that connector there are the following pair...dark blue/light blue and brown/yellow..which is negative and postive,im assuming the light colors are the positive,,might be a dumb ? but just wanted to make sure,,thanks

[choptop]

Are you talking about the wires for the speakers only, or just that there are 4 wires only? As far as positive and negative, you can switch it at the speaker. It will work either way. I use a 9v battery to locate with wires go to which speaker., When you connect it across the battery, the speake will make a pop sound Dont hold it on it, just touch it. The thing I have found in the past is hook up you speakers, and when the radio is on, take one speaker, take note to the way it sounds, and then reverse the positive and negative wires. Listen again, and leave the wires connected in the way the speakers sound overall. I forget the term used, but basically its phasig the speakers for best sound. You can repeat the process for the two front ( if installed) and so on.

[onecustom73]

i was curious about which colors coming off the stock connector for the rear speakers are negative and positive,i am putting the stock radio in and had just bought those 6x9 brackets and speakers,so im almost done ,just didnt know what colors out of the two pairs i mention about above where -/+