2005 altima w/ bose

I have a 2005 altima w/ bose, and it my 1st post here. I was referred to this site from nissanclub.com from one of the members here. Before I started my install yesterday, I had a jl 250/1 amp running a jl 12w3v2. It was hooked up to a line level converter from rear outputs on the bose amp. Well yesterday I installed a 2nd amp (soundstream vg400.2) and some new component speakers (mb-quart pce 216's) up front. I have the power running to the amp by using 4 guage power and ground wire running to a distributor block then 8 guage power and ground's to each amp. To get the signal for the amps, I used a line level converter tapped in to the speaker wire for the front left and front right speaker outputs from the bose amp. Then I ran RCA's to each amp. I ran new speaker wire from the new amp to the crossovers and then to the speakers.. Well, last night everything sounded great and was working perfect. I came out this morning and my sub was hardly putting out any bass. Then a SES light came on. I tried to pull the code, but it just gave me 5 long flashes. Also, my power door locks don't work from the window controls, but they do work from the key fob. Also, I can't roll down the passenger side window from the drivers side door, but can from the passenger door. Any wise advice would be greatly appreciated.