Wiring help, 2010

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GCATX

King Dingaling
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Installing an aftermarket head unit, keeping the factory Sony Amp/sub. Question, the small harness for the sub has 2 blue/white wires, are these both to be connected to the blue/white going to the head unit and the blue/white to the new larger harness? So the 4 wires should be soldered together?

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bgrelle

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Which harness did you buy? I’m trying to do the same thing and was told by tech support that you need a digital signal to the Sony amplifier.
 
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GCATX

GCATX

King Dingaling
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Which harness did you buy? I’m trying to do the same thing and was told by tech support that you need a digital signal to the Sony amplifier.

Turns out I had the wrong harness, needed one with an interface box anyway. I got what I needed, 2nd time around, from Crutchfield, though I didn't buy the stereo from them. They have a good reference for what is needed with which truck/stereo. Works like a champ. The instruction with the kit were decent too.
 
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