Subwoofer acting up, cant figure out problem

[SketchyRollin564]

About a month ago at a drift event, i took my subwoofer and amp out of the car. I took out the fuse so the wires werent charged, and tucked all the wires (RCA and remote wire) neatly by the rear strut tower. Somehow, at the end of the night, the wires ended up underneath my spare tire... and were getting tugged on and yanked, etc.

When i hooked everything back up, the bass would come on really strange, sometimes not hit when it was supposed to, and then hit when its not supposed to. And if i turned the subwoofer off from the head unit, it would still randomly hit at wierd times and frequencies, and any time i either hit the brakes, turn the lights on, put my blinkers on, or put my hazards on, etc, the sub will hit.

I got tired of it and just disconnected the fuse untill i could change the RCA wires and remote (amp turn-on) wire and figured that should fix the problem. I bought brand new gold tipped RCA wires and got a new wire for the amp turn on. I connected everything today before work, just to find out its still doing the same thing. With the sub off from the head unit, it would still hit randomly, and even if i had the volume at 0, if i were to put the hazards on, you would just hear the sub go "boom BOOM boom BOOM boom BOOM" etc...

Anyone have any idea on what could be going on? Changing the wires didnt do anything. I left the hazards on to diagnose the problem. If i unplugged one of the RCA wires the volume of the "boom" from the hazards would decrease by half, and if i took them both out, they would stop completley. When i plugged em back in you would still hear the subs hit with the hazards. Same with the remote wire. I made sure any of the wires werent pinched or kinked in any wierd way, and i made sure they were plugged in and connected right and werent loose or wiggly, and they were fine... so there has to be something else in the equation that i cant figure

anyone ever had this problem? Anything helps, thanks

[SketchyRollin564]

Anyone?

[idahotuner]

how is your sub set up, i am thinking about making an enclosure where the back seat is one side being the sub, and the other side being the amp

[jsturges18]

at this point you should just remove the whole system and redo it. ive never heard of anything like this i wonder...are your speaker wires hooked up the right way? how are you running the sub and amp? 1 channel? 2 channel bridged? svc? dvc?

[SketchyRollin564]

at this point you should just remove the whole system and redo it. ive never heard of anything like this i wonder...are your speaker wires hooked up the right way? how are you running the sub and amp? 1 channel? 2 channel bridged? svc? dvc?

If system you mean just the amp and sub part, yes i did this. I didnt do the head unit though as theres no need to. The only thing i did was the remote wire to the head unit, since everything for the speakers and head unit itself is fine.

My speaker wires are hooked up fine. The sub and amp is like so

The remote wire comes from head unit under the shifter and center console, past the back seats, to the amp.
RCA wires are from head unit, underneath everything to the amp, the same way.

I have the battery right behind the back seat on the passenger side, and the subwoofer on the drivers side. For power, i have the wire coming from the positive terminal, through a fuse, to the power on the amp. Then i have the ground from the amp, to the same ground as the battery. Its been like this for over a year and has always been fine.

For the positive and negative channels on the amp, there are two. They are currently bridged, positive on one channel, negative on the other channel, like so. The positive is on the left channel, and the negative on the right channel.
l+l-l l+l-l

I have the positive from the amp channel to the positive on the sub, and the negative to the negative. I tryed making it so its not bridged, and just running on a single channel, and this didnt change a thing...

and as far as svc/dvc, its a single voice coil kicker comp.

so with this being said... im completley lost on whats wrong.

[h2v7]

so you unhooked the remote ground power and rca and replaced them all and still problem??

[jsturges18]

hook up is correct then for bridging it and everything seems to be ran fine. i wonder if your amp just happen to die. maybe it shorted inside it when it was moved out of the car. what kind of amplifier is it? try opening it and looking for any burnt lines or hook up a multi meter and check capacitors and all the other goodies in there for power. try hooking up a different amp if possible

[SketchyRollin564]

tryed a different amp, same problem persits

it seems like it might be the head unit

supposidly the pioneers can short inside the pre amp output for the subwoofer

i just realized, even though i dis-charged the power wire from the battery to the amp by removing the fuse, i still left the RCA and remote wire exposed. True the RCA doesnt carry any power, and the remote wire is very minimal power... but is it possible that this could have caused a short back to the head unit?

[1KleenS13]

You may have a shorted wire in the harness for the tail lights and causing feedback through the sub, I would think a fuse would be blowing though. Do you have a good ground for the amp? Does the Headunit have a good ground?

[FlipCoupe]

I would try replacing the RCA's or testing your amp in another car, I had a similar issue in my SUV when I took my system out for a trip, when I put it back in it was doing all sorts of weird things, turned out to be one of the RCA wires. I had the cheap wal-mart SCORCE brand or w/e though so the ends sucked.

[SketchyRollin564]

the ground for the sub is good, as far as the head unit, its never been an issue

i already replaced the RCA's, and i tryed my amp to another car and it was fine.

seems like the issue is the head unit... im going to try a few more things, but if nothing works, ill get a head unit. If that doesnt work, then at least i upgraded my head unit lol