Like others here I am reluctant to cut/tap into the factory wiring for the audio system and since I could not find one commercially available yet, I went ahead and made my own breakout harness for the Harman Kardon amplifier in my SX. I plan to install a new amp/dsp in a few months and this was the first step in my process. Bottom line it permits installation of aftermarket audio components without cutting/tapping of factory wires while also maintaining full use of that same factory wiring for speakers (we've seen elsewhere the challenges of running new speaker wire out into the doors). Thus far it works flawlessly with all channels intact for this particular connector...the center channel and front tweeter channels are located on the 2nd amp connector (w/inputs, pwr, gnd, etc), but I do not plan to use those in my future setup (disabled and crossover, respectively).
