The passive crossover is more than just a capacitor. I did not want to break the heat shrink tubing and foam to see what is the design. However, I can peek inside from both end. I see an inductor for the midbass and a capacitor and resistor for the tweeter. I may try to get the response of the network later on.
I did a capture of the signal first on the rear speaker because they are the most accessible. I will get the response at the front speaker when I open the door to install the new speaker.
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