wire color, rear speaker no workie

My rear seat speakers don't work, just installed a head unit, I had a head unit in there, from best buy so I guess they hooked it up wrong too. its a 94 formulka will it this color coding apply?

Pin#............Color.................Function
1......................Grey....................... .Front Left Speaker -
2......................Tan........................ ..Front Left Speaker +
3......................Dark Green.............Front Right Speaker -
4......................Light Green.............Front Right Speaker +
5......................Black .....................Ground
6......................Brown.....................I llumination
7......................Grey....................... .Dimmer
8......................Pink....................... ....Power Antenna
9......................Yellow..................... 12V Ignition
10....................Orange....................12 V Constant
11.....................NA......................... ..NA
12.....................NA......................... ..NA
13.....................NA......................... ..NA
14....................Dark Blue................Steering Wheel Controls
17....................Light Blue............... Right Rear Speaker -
18....................Dark Blue................Right Rear Speaker +
19....................Yellow.....................L eft Rear Speaker -
20....................Brown......................L eft Rear Speaker +

Best thing to do is not go buy color charts unless you bought the car brand new and if you say best buy installed it wrong they have have put new wires in? The thing Id do would be to start touching wires and figure out the rear speaker wires or easier would be pop off the speaker and look to see what colors the wires were and find them in your console. And if all fails rewire the speaker yourself, you can use any kind of speaker wire but if youre gonna rewire one might as well buy good speaker wire and rewire everything it would sound a whole lot better. :)

I looked at the color for the rear seat speakers, it is going into my factory harness, then I plug my head Unit into the factory harness and the speakers dont' work, Iguess its possible ihave the wires hooke up wrong where you got to splice them and get them together, most of the are color coded though.. this is annoying,

can i replace teh stock spakers with some different speakers, I heard you run into promblems but i guess that is when you got a stock HU. thanks

i fixed it thanks