So heres what i have done already. I have removed all the stock speakers, the stock amp and subwoofer assembly and began the install that I will later hate. The speakers I have reinstalled Kappa Perfect Comps in the doors with the crossover in the door as well sealed up nicely and the tweeter in the stock location. The rear doors are Eu700's for some mid bass and the rear will be Kappa Perfect 10's 3 of them. The amps are a ED 9.4 and a ED 9.1. I tapped the stock wires off the headunit and spliced them into RCA low inputs which was cake from all the STICKY'S up top and the wiring wasnt too bad either. The car just does not like to be apart is all. Well its all in and done and I notice something the inputs have almost no power to them. I tried to adjust the gains as ED reccomends and even at full power on the gains the output is less then half of what Im looking for. I know theres power, the amps are great, the wiring is flawless. So my only trace is the headunit puts out less then 1v on the preouts!!! So my question is do you guys have any experience with Line Drivers. Im planning a a 6 channel unit that has a few crossovers built in that will drive the power up to 8 volts allowing me a ton of adjustability at the amps. I want to know if anyone one else has experience with them.