Actually, I'm embarrassed to say, I haven't touched my crossfire - it's not that I don't want to but between alot of stuff in my life over the passed year or more - I just haven't had time! What would fit with our business philosophy is to keep the stock head unit (if I can hotrod an aux -in) and add big amplification on a metal rack, some type of sub, maybe a couple of L5 tens, and upgrade the top end - probably diamond hex or maybe our own blend of proprietary high frequency drivers. I've really wanted to experiment with "line arrays". I found out an old friend of mine, David Graebener, is a principle in a company out of Colorado specializing in these... might have to give him a call. The other thing I'm working on is - implanted 'rfid' technology. I have purchased the basic hardware required to assemble a reader that will be able to recognize a 2 by 12 millimeter chip that will get implanted in my right hand. The initial plan is to place the small inductance based transponder antenna in the driver side quarter window. I should be able to walk up to the car, hold my right hand up to the antenna,then, if the reader confirms my hand recognition it will unlock my door, disarm security and trigger the remote start. I'm still designing what will happen next, whatever way I achieve it I will have a secondary, secure system of turning on the ignition and accessory circuits to be able to drive keyless. I look at it like this - anybody with enough money can buy one of these truly beautiful automobiles - but mine will recognize ME.