Very odd problem, one channel on amp cuts out. fixed by locking/unlocking doors

[Darkstrike120]

Ok so here is a weird one for you guys. Just recently one of the channels on my 4 channel alpine amp seems to cut out. when it does it is accompanied by some very loud static by its paired speaker. The weird part is it fixes itself if i hit the lock/unlock button on my door panel. Not joking...... I have no idea what to do about this. Also the static it gives off does not depend on what volume i have my radio at. It is the same volume no matter how loud i have the rest of the speakers. This happens pretty frequently but every time SO FAR it can be corrected by unlocking/locking the doors.

Click to read more...

 

[VWBobby 10+ year member]

Sounds like the lock mechanism is hitting your speaker wires.

 

[SounDrive Pro Seller]

Are you using the stock head unit? If so then it could be a variety of problems

 

[Darkstrike120]

I am using the fh-x700bt from pioneer. The weird thing is if I swap which channel the speakers go to I can change which speakers get the static. Therefor i don't think there can be a problem with the speakers themselves or the wiring to my amp. Originally it was the left fronts that were cutting out. However I was able to swap the channels on the amp and make the right fronts the problem.

 

[Darkstrike120]

I set the system up about a year ago and it has been fine until a week ago.

 

[Full Tilt 10+ year member]

Welp, sounds like something is wired wrong. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Jepalan]

Sounds like the lock mechanism is hitting your speaker wires.

+1 on this ^ being the likely cause. Pull the offending speaker and door panel off and look for a frayed wire or poor connection somewhere in that door/speaker.

 

[Darkstrike120]

But there is no way to tell which speaker is the issue because it changes based on which channel I hook the speaker into my amp. There is no single speaker that is giving me the issue. Its just whatever is speaker is hooked into channel 1 on my amp.

 

[CrossoverOre 10+ year member]

what kind of vehicle? does the problem jump around when you switch the rca's around or just the speaker outputs?

 

[VWBobby 10+ year member]

Its just whatever is speaker is hooked into channel 1 on my amp.

Just to clarify... All of the speakers work fine when plugged into channels 2, 3, 4 - but no speakers work without static if plugged into channel 1? If it is isolated to channel 1 on your amp having an issue, I would suspect that channel has fried. Again, double-check your RCA's and try swapping from the other channels RCA's to channel 1 and see if your problem moves.

 

[Darkstrike120]

yes correct. However hitting my power door lock button fixes the issue temporarily. Obviously it makes me think the amp is bad. But im confused as to how the door lock button is interfering with my channel one.

 

[VWBobby 10+ year member]

No, that tells me that your power door lock mechanism is hitting your speaker wires... I would pull your door panel off and see if the rods or lock is hitting the speaker or the wires going to it.

 

[Darkstrike120]

Ok so i should just take all 4 doors off and check for a problem on each door? ill just do that i guess then

 

[CrossoverOre 10+ year member]

I would do more investigating at the amp before ripping apart all doors. did you try swapping rca's and see if the problem jumps around with the rca's or if it only jumps when speaker wires are swapped.

 

[michaellane 5,000+ posts]

Im pretty sure something is touching in the door