pioneer avic z2 subwoofer output issues

when i turn my subs off at the deck, i am still getting a signal to my sub amp. it is barely audible and it isnt loud. it sounds kinda like when 2 subs are wired wrong and they cancel each other out. what do i need to do? could it somehow be my 360a2 since its been modified? the equipment is pioneer avic-z2 fosgate 360a2(modified) bridged to 2 ohm 850rms (subs) fosgate 400s (mids/highs) 2 fosgate p2 12's in high spl vented enclosure tuned @ 35hz fosgate power components 2 stinger sp800 batts

Does it have horrible engine noise?   Does it make a pop when you turn the volume from 0 to 1 and or from 1 to 0?   Have you tried turning the gains down on the sub amp to see if you can make the noise go away?

no pops or engine noise, i have my rca's grounded and all my wiring is done right. seperate power/ground for the deck, very good grounds for the amps.i say stupid stuff all the time, this is nothing new.

no i haven't tried to adjust the gains. i figured the signal would be there regardless of gain settings.i say stupid stuff all the time, this is nothing new.

when you say weak/bad signal, do you mean after the amp has processed it, or have you tested the signal before it gets to the amp?"It is impossible to defeat an ignorant man in argument."

- William Gibbs McAdoo

yeah after the amp. my deck (i guess) is still sending signal with the sub control turned off. i will switch my rcas from sub to rear and change my rear outputs to low pass and see what that does i guess. i was just hoping my 2000 dollar head unit wasn't f'n upi say stupid stuff all the time, this is nothing new.

can't say i blame ya there. but, if all goes well with the signal from the head unit, your modified amp seems to be the issue, which may not be any better news for ya."It is impossible to defeat an ignorant man in argument."

- William Gibbs McAdoo

imnottrippin wrote: i have my rca's grounded .

Did you ground them at the radio or at the amplifier?  If you did it at the amplifier, you created a ground loop. 

grounded to the deck. soldered even. i'll mess with it this week and post the results. thanksi say stupid stuff all the time, this is nothing new.

well, i unhooked the fosgate sub amp and hooked up my kicker zr1000 and im still having the same issue. my sub out still seems to work just fine at all other settings besides off. anyone have any suggestions about what exactly could be wrong? i feel like i just found out my dog has cancer or something. weak...i say stupid stuff all the time, this is nothing new.