Vehicle: 2003 Infinity G35 Coupe

I am in the the process of mounting my Infinity Kappa 60.9CS component speakers. I am trying to determine which of the standard factory wires are the audio in wires. When I look at the bundle of cables that come from the car into the door, obviously there is a red & green pair of audio wires that connect to the main woofer in the door. However, if you look at the picture you will notice that somewhere the tweeter's green & red audio wires split off before the main woofer. The tweeter's wires do NOT come from the main woofer.

So my question is this: if you look at the picture you will see a small white plastic box attached to the big bunch of cables that came into the door. Is this white plastic box some sort of "component" crossover that takes an audio in line, and then splits it to an audio out for both the woofer and tweeter...?

How can I determine which is the main audio in wires...???

Thank you -- Cameron

 

good question.

 

There's no crossover in the factory system, so both the tweeter and the speaker receive the full-range signal.

Just take the wires going to the door speaker and run them to the crossover for your aftermarket components, and run the wires from that to the new tweeter and speaker.

 

Awesome -- thank you for the confirmation. I "kinda" figured that one out too.

I took a multimeter and checked the continuity between each of the three green wires, and also each of the three red wires, of the white connector. There is continuity between each of the three wire pairs/sets. Thus I came to the conclusion that the white connector in the door was a straight bridge -- one line in, two lines out (woofer/speaker and tweeter).

Also, when I reviewed the Bose speaker wiring diagram (attached), looking at connector D13 or D41, it also appears that there are no other electrical components (e.g. a cross over component) in the audio wiring. Here again it appears that the white connector in the door is a straight bridge -- one line in, two lines out (woofer/speaker and tweeter).

Again Wrathernaut -- thank you for your help and info. It is very much appreciated!

I would like to take this opportunity thank both Wrathernaut and Top Teke for all the help that they provide on these forms! THANK YOU!

Cameron

 

You're welcome.

Just be sure to post up pictures and other stuff from your install experience, it helps a lot of people get the courage to try this stuff themselves.

 

I have taken a lot of pics and will post them shortly! :-)