2001 monte carlo head unit question

MTX9515
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The wire harness from the factory head unit has two illumination wires one is all orange and the other is orange and white.. now the wire harness from the after market headunit does not have a illumination wire. and when I plug in the radio nothing happens what is going on??? the wire harness also has two or three of the same wire. EX. wire harness from the stock hu two 12volt wires...two red ones...

 
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This is how the harness looks for the after market head unit
2659_1040679503963_1434819064_30214295_6601942_n.jpg


and this is how it looks from the stock head unit.. you see how it has more then one illumination wire and two red ones.. and is red and white
2659_1040679543964_1434819064_30214296_8047642_n.jpg


 
It's just common sense man. If you have 2 red wires, twist'em together, then connect it to your head unit harness. I'm not sure what the red and white is, tho. Look at the harness' package and look at what each color is.

And screw the dimming. Orange wires are useless.

 
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MTX9515

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