sub install trouble - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

EATIT · 03-17-2012, 05:02 PM

ok, I have the ******** x3 harness to add an aftermarket sub amp and subs, I have a monoblock amp, and 2 dual 2 ohm voice coil subs, they are wired series parallel and will run at 2 ohms, now the problem, The amp powers up and the amp turns on with the remote turn on wire, but, no signal to subs!!! seems like i am getting no rca outout from the subthuimp harness? all i can see when i try to connect the rca outs to the rca to the amp is that when i first plug in the rca, and i dont put it all the way in, i get a little movement from the sub, then nothing! its like if i just barley put the rca in to the rca out on the x3 its makes the sub jump then thats it, any ideas what i did wrong or my problem, all positives and negatives are right, i am leaning towards a bad harness? help!!!! steve? I am thinking of just ordering another harness, but hate to do that unless i know

EATIT · 03-17-2012, 05:03 PM

just to be safe, even though its a mono block amp , does it matter that i used an rca cable with left and right channel, tghen put it to the input on the mono block amp? they show on there directions, mono line input?

EATIT · 03-17-2012, 05:08 PM

one more thing , i am using a class D amp if that matters, I read somewhere on here about some having issues with the x3 and using certain amps

EATIT · 03-17-2012, 05:45 PM

bump! Help!

Vaux96 · 03-17-2012, 05:55 PM

wow ok, um yeah so it kinda sounds like you have something wired wrong. Being a mono amp should not matter, using those RCA's should not matter, as long as it's all wired correctly.

Vaux96 · 03-17-2012, 05:57 PM

And it's either series or parallel not both.

Vaux96 · 03-17-2012, 05:59 PM

Are all of your other speakers working?

EATIT · 03-17-2012, 06:02 PM

all other are working, and yes, its wired as in the above diagram, i have been reading on here that some amps are having problems with the dc voltage? something about a ground loop isolater? problem is, i have nothing but a little movement from my subs when i put the rcas in to each other at the x3 harness, when pushed in all the way nothing, was thinking of trying the ground loop isolater

Vaux96 · 03-17-2012, 06:15 PM

ground loop isolator eliminates noise, I don't know what others here were using it for.

If your sub is activating when you plug in the RCA, that leads me to believe that your are getting some sort of signal from them. Try the other set of RCA's. Are you sure the light your getting on your amp is the power light? It's not going into protection mode or anything right?

Vaux96 · 03-17-2012, 06:20 PM

Do you happen to have another sub you can hook up and see if it works? Then you know it's your subs/subs wiring, or hook your subs up to a friends amp, if they work then you know it's your amp/harness wiring.

EATIT · 03-17-2012, 07:21 PM

thank you all! I got it!!!!! Found loose connections at the sub box, of all things!!really threw me, I kinda figured it would be something stupid, and it was.

03-17-2012, 05:02 PM	#1
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	sub install trouble ok, I have the ******** x3 harness to add an aftermarket sub amp and subs, I have a monoblock amp, and 2 dual 2 ohm voice coil subs, they are wired series parallel and will run at 2 ohms, now the problem, The amp powers up and the amp turns on with the remote turn on wire, but, no signal to subs!!! seems like i am getting no rca outout from the subthuimp harness? all i can see when i try to connect the rca outs to the rca to the amp is that when i first plug in the rca, and i dont put it all the way in, i get a little movement from the sub, then nothing! its like if i just barley put the rca in to the rca out on the x3 its makes the sub jump then thats it, any ideas what i did wrong or my problem, all positives and negatives are right, i am leaning towards a bad harness? help!!!! steve? I am thinking of just ordering another harness, but hate to do that unless i know

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03-17-2012, 05:03 PM	#2
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	just to be safe, even though its a mono block amp , does it matter that i used an rca cable with left and right channel, tghen put it to the input on the mono block amp? they show on there directions, mono line input?

03-17-2012, 05:08 PM	#3
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	one more thing , i am using a class D amp if that matters, I read somewhere on here about some having issues with the x3 and using certain amps

03-17-2012, 05:45 PM	#4
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	bump! Help!

03-17-2012, 05:55 PM	#5
Vaux96 Drives: 45th 2SS LS3, 05 Ram 1500 SLT Join Date: Jul 2011 Location: United States Posts: 389	wow ok, um yeah so it kinda sounds like you have something wired wrong. Being a mono amp should not matter, using those RCA's should not matter, as long as it's all wired correctly.

03-17-2012, 05:57 PM	#6
Vaux96 Drives: 45th 2SS LS3, 05 Ram 1500 SLT Join Date: Jul 2011 Location: United States Posts: 389	And it's either series or parallel not both.

03-17-2012, 05:59 PM	#7
Vaux96 Drives: 45th 2SS LS3, 05 Ram 1500 SLT Join Date: Jul 2011 Location: United States Posts: 389	Are all of your other speakers working?

03-17-2012, 06:02 PM	#8
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	all other are working, and yes, its wired as in the above diagram, i have been reading on here that some amps are having problems with the dc voltage? something about a ground loop isolater? problem is, i have nothing but a little movement from my subs when i put the rcas in to each other at the x3 harness, when pushed in all the way nothing, was thinking of trying the ground loop isolater

03-17-2012, 06:15 PM	#9
Vaux96 Drives: 45th 2SS LS3, 05 Ram 1500 SLT Join Date: Jul 2011 Location: United States Posts: 389	ground loop isolator eliminates noise, I don't know what others here were using it for. If your sub is activating when you plug in the RCA, that leads me to believe that your are getting some sort of signal from them. Try the other set of RCA's. Are you sure the light your getting on your amp is the power light? It's not going into protection mode or anything right?

03-17-2012, 06:20 PM	#10
Vaux96 Drives: 45th 2SS LS3, 05 Ram 1500 SLT Join Date: Jul 2011 Location: United States Posts: 389	Do you happen to have another sub you can hook up and see if it works? Then you know it's your subs/subs wiring, or hook your subs up to a friends amp, if they work then you know it's your amp/harness wiring.

03-17-2012, 07:21 PM	#11
EATIT Drives: 2010 camaro 2LT/Rally Yellow Join Date: Feb 2012 Location: United States Posts: 78	thank you all! I got it!!!!! Found loose connections at the sub box, of all things!!really threw me, I kinda figured it would be something stupid, and it was.