Can I use a test light like this?

[tr10av 10+ year member]

If I hook up the test light clamp to the constant 12V+ of my car wire can I then put the probe on the speaker wires to find the ground that way? Will that hurt anything?

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[goingdef 10+ year member]

I don't think that will work unless you ground the wire you want to be - to the chassis of the car up in the dash then start to test for what wire you have grounded

 

[tr10av 10+ year member]

I don't think that will work unless you ground the wire you want to be - to the chassis of the car up in the dash then start to test for what wire you have grounded

I don't know but that wouldn't work cuz then i'd have to take out all the speakers to test on that end, which is what i'm trying to avoid.

 

[Horsemanwill 10+ year member]

are you lookin for the negative of the speaker? what is it ur exaclty trying to do?

 

[goingdef 10+ year member]

are you lookin for the negative of the speaker? what is it ur exaclty trying to do?

I think you got it he wants to find the neg without pulling the speakers, I have tested subs that friends have installed by hitting a 9v battery to the terminals to see what direction the speaker moved towards you maybe able to adapt that to this situation if you can see the speaker just don't hold the battery to the wire bump it and by 9v I mean the one out of your smoke detector

 

[Horsemanwill 10+ year member]

if that's the case OP see ur other thread i posted a link for u

 

[goingdef 10+ year member]

jsut thought about the Q no you can't use the light like that in no way with the wires hooked to the speaker testing them with a light will not show a ground because there is no ground present in the circuit all the + - on your speaker do is tell you to hook them all up the same way for phase purposes there is no set + - past the output of your amp it is no longer direct current it is an alternating current

 

[tyler01]

jsut thought about the Q no you can't use the light like that in no way with the wires hooked to the speaker testing them with a light will not show a ground because there is no ground present in the circuit all the + - on your speaker do is tell you to hook them all up the same way for phase purposes there is no set + - past the output of your amp it is no longer direct current it is an alternating current

I don't think that will work unless you ground the wire you want to be - to the chassis of the car up in the dash then start to test for what wire you have grounded

you can use the leds that wil be ok

 

[subzero 5,000+ posts]

I have always used a 9volt battery and watch the cone.pos pos makes cone pop out...

 

[Phoenix Risen 10+ year member]

the 9 bolt is the only way to do it with out taking it all out, unless things are color coded, if its factory coding you can just download a pdf manual and look it up there