Hello guys this is my first post to the forums. I have the 8.4 LCD WO / The Alpine upgrade. I kept the factory hu but put 2 kker coaxial 3.5 spkrs in the dash, 2 kker 6.5 components w.75" tweeters passive crossover in my front doors, 2 kker 3 way 6x9s in the rear doors. 2 JL 10s under back seat. I have the HU speaker outputs running to a audiocontrol DQ-61; a Boss R3004 4 channel amp powering the 4 door speaker ; and a infinity k600 amp running the 2 10s. The model numbers for each speakers (43csc354 dash) (43css654 front) (43csc6934 rear) (10w0v3-4 subs) I was wondering how I should run my door speakers? High pass for front and full range for rear or all doors full range? And any other advice or suggestions as well. I did realize after that the rms for the 4 channel is 150x4 and the front components are 100rms... I bought a lumy lm2001 to try and set gains with is scope ability but not too familiar with waves and the graph is not too clear. I think I did manage to get close to a clean signal so far for the 4 channel. Haven't done any tweaking with the subs. Thanks in advanc