Awesome, way to take the plunge successfully! Wow, even your original CD changer works, very impressive. Which wires did you end up splicing into, just the ignition and Reverse (RFSL)? Did you have to mess around with the wiring to the DIS? Does your clock work? As for the ground, I need a little more of an explanation. Is it a loose ground wire? What did it used to be connectd to, which pin. Lastly what pins are still open on your harness if any? The way it sounds it might be an extra ground (not needed, except for a future accessory). I'd love to see pictures of your success if you get a chance.