Lasherž
CarAudio.com Elite
That is the correct way to hook it up, yes. Don't cut the wire though when you tap it, you can just move the insulation away and put the new wire between about half and half of the strands then twist around. Ideally for connections like that you'd use heat shrink but in this case you probably won't be able to find a heatshrink that'll fit over the connector and shrink small enough so use electrical tape. Make sure it's tight enough to almost be stretching as you wrap it to get good results. Heat shrink the new wire as it comes out of the tape wrapping for strain relief.
It should be pretty easy, kicker's website has some tones you can download and play on your phone if you have Bluetooth. They also offer .wav files for CD's. What Jeff said is on the money. The signal that it's taking from the HU output is the limitation on how good an LOC can be. The reason a lot of people here recommend replacing the unit is it eliminates a lot of potential issues but ultimately it's only potentially going to be an issue until you test the tones and know for sure. An LOC breaking up 6 outputs from one single high quality input is hands down better than an LOC breaking up 6 inputs each from varying quality signals to each of their independent outputs. The only upside to the latter is that you maintain fader functionality, but it's not worth having half of your bass response cut off and then recreated from noise. You can always adjust the front/back volume from the LC7i itself.
