imprezza

I found the problem, the ground wire that was connected to the RCA sub out cables from the deck was frayed and exposed. I grounded that wire and now it works perfectly. Also the amp turn on wire came out of its connector so i resolved that as well. I thank you guys for your prompt and helpful advice! cheers

ok i did what you said and unhooked the rca's from the amp. no pulsing through the sub. any other ideas what could be causing this?

but if i unplug the rcas on the amp, then the sub wouldnt be getting a signal right? if its not getting signal than how would i determine if its pulsing or not?

the rca line to the amp? I had another deck installed and had no problems of this sort with the line before. happens when the amp is turned on, so when the d3 is on as well.

I just installed my D3 however when I hook up the sub RCA wires my sub starts to pulse bass even when there is nothing playing. its a constant pulse. Is there a fix for this or am i doing something wrong? I have my amp turn on wire hooked up to the ignition wire (red ) because the blue and white striped wire on the harness isnt working. pls help! thanks