RPM whine??

[hoss 5,000+ posts]

you are deff more educated than the OP but you are being a ***. the guy is just looking for some help. and trial and error would be trying one thing then another til its fixed. all the errors are the things u tried but didn't fix the problem. please read a book. this IS TRIAL AND ERROR

Do a search... You have engine whine, it is ALWAYS a ground... It is not trial and error, it is doing it correctly, or doing it incorrectly. Ground it half assed, or ground it properly.

Hell, you only have to do things right once. If you screw up, find the problem and fix it, that does not make car audio trial and error. How pissed would you be if you paid someone to install your stereo and you had problems and they gave you the excuse that it was trial and error?

 

[hoss 5,000+ posts]

but.. I'm off to bed, I will make sure my grounds are 100% grounded to bare metal.
Thanks for the help guys

That doesnt mean they are done properly...

so even tho his grounds will fix the whine you tell him its a pinched wire? hmmmm NO. yes it could be that but be honest 90% of the time the problem is the ground. but its kool man im sure you're correct.

I never said it was a pinched wire... That was someone else.

 

[BloodyGuts335i 10+ year member]

not trying to "thread jack" here.. but I have the same issue and had it for a while.. I swapped out all my rca's for all brand new jl audio rca's.. the ground is coming straight from the battery located in my trunk. the rear battery has a pos and neg wire coming directly from the front battery.. so I doubt its my rca's or my ground.. I had a noise eliminator thing and it went bad and took it out so I refuse to use another one of those again.. my rca's and power & ground wires are running on different sides.. they do come in contact in the trunk though since my amps have all the speaker wires, power wires and rca's plugs all on the same side near echother.. so I dont know if thats the case.. (it shouldnt because i had these amps in a previous car and it didnt make the rpm whine.. I am confused...lol

 

[hoss 5,000+ posts]

not trying to "thread jack" here.. but I have the same issue and had it for a while.. I swapped out all my rca's for all brand new jl audio rca's.. the ground is coming straight from the battery located in my trunk. the rear battery has a pos and neg wire coming directly from the front battery.. so I doubt its my rca's or my ground.. I had a noise eliminator thing and it went bad and took it out so I refuse to use another one of those again.. my rca's and power & ground wires are running on different sides.. they do come in contact in the trunk though since my amps have all the speaker wires, power wires and rca's plugs all on the same side near echother.. so I dont know if thats the case.. (it shouldnt because i had these amps in a previous car and it didnt make the rpm whine.. I am confused...lol

It is a bad ground, somewhere in your system. Could be the HU, could be the RCA's, could be the amps, could be your battery connections. Somewhere, you have a bad ground connection.

Engine whine is always a bad ground. In a DC environment (car audio) the power comes from the ground, you have a bad connection you have bad power delivery, you get noise introduced. If there is noise that corresponds to the engine, it is always going to be a ground...

 

[BloodyGuts335i 10+ year member]

It is a bad ground, somewhere in your system. Could be the HU, could be the RCA's, could be the amps, could be your battery connections. Somewhere, you have a bad ground connection.
Engine whine is always a bad ground. In a DC environment (car audio) the power comes from the ground, you have a bad connection you have bad power delivery, you get noise introduced. If there is noise that corresponds to the engine, it is always going to be a ground...

ok.. i get you.. whats strange is that it started when I got my new HU installed.. I am sure they used the same ground as my last HU though that wasnt giving noise at all...

 

[SocialStealth]

For some reason this kid just seems like a complete tool.

He has 14000 posts

/thread

But on a more serious note, they meant finding where the op messed up is trial and error, not the install itself.

OP:

You need to sand down to bare metal where you make your grounds.

If you don't, your grounding metal to paint. Paint ain't that great of a conductor.

 

[hoss 5,000+ posts]

2. 6 years on a car audio forum....LOL are you serious?

And ya know what else... Fuck yes I am serious... Some of us take this as a hobby, and not just a passing fad... I have been installing and learning car stereo since before you even knew what the hell it was... If you cant stick with something for more than a few months then that is your problem, some of the people here enjoy what they do, they enjoy this as a hobby, and they get into it for fun.

So if all you want is advice so you dont go and fuck up another install, then just search the internet and get your answer and dont waste our time... Dumbasses like you who just want the answer to be spoon fed to them are the reason why no one wants to help anyone else anymore. The answer is out there, you are just too lazy to find it yourself...

 

[SocialStealth]

ok.. i get you.. whats strange is that it started when I got my new HU installed.. I am sure they used the same ground as my last HU though that wasnt giving noise at all...

lol, is it a pioneer?

And I believe there is a tool to test the resistance of your grounds. Dono what its called though. I think I have one in my dads garage but I dono how to use it //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[BloodyGuts335i 10+ year member]

lol, is it a pioneer?
And I believe there is a tool to test the resistance of your grounds. Dono what its called though. I think I have one in my dads garage but I dono how to use it //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

no.. its a jvc double din..

 

[hoss 5,000+ posts]

lol, is it a pioneer?
And I believe there is a tool to test the resistance of your grounds. Dono what its called though. I think I have one in my dads garage but I dono how to use it //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

A DMM (Digital Multi-Meter)

no.. its a jvc double din..

A shop installed it?If the HU is the only thing they changed, then it is likely either the HU's ground, or the RCA connection to the HU. Either way, if a shop installed it, take it back to them.

 

[SocialStealth]

And ya know what else... Fuck yes I am serious... Some of us take this as a hobby, and not just a passing fad... I have been installing and learning car stereo since before you even knew what the hell it was... If you cant stick with something for more than a few months then that is your problem, some of the people here enjoy what they do, they enjoy this as a hobby, and they get into it for fun.
So if all you want is advice so you dont go and fuck up another install, then just search the internet and get your answer and dont waste our time... Dumbasses like you who just want the answer to be spoon fed to them are the reason why no one wants to help anyone else anymore. The answer is out there, you are just too lazy to find it yourself...

OP, you've been blessed with his presence, now gtfo.

And maybe your hu is drawing more power (higher voltage rca's ?)

so now it needs a better ground than before?

 

[BloodyGuts335i 10+ year member]

A DMM (Digital Multi-Meter)

A shop installed it?If the HU is the only thing they changed, then it is likely either the HU's ground, or the RCA connection to the HU. Either way, if a shop installed it, take it back to them.

its been a while now since they installed it.. the HU has been removed a few times so I know they will not try to fix it now.. some ppl have told me that it could be the Y splitter I am using.. the HU has a single plug for the sub input instead of a rca jack.. so I needed a Y splitter.. and then to make it worse.. the Y splitter needed an adapter because it needs an all female Y splitter and I cant find one for Sh*t..lol.. so I added an adapter to make it all female...

 

[BloodyGuts335i 10+ year member]

OP, you've been blessed with his presence, now gtfo.

And maybe your hu is drawing more power (higher voltage rca's ?)

so now it needs a better ground than before?

the ground for the HU is on the barr behind the dash.. pretty solid metal bar with no paint on it.. lol

I could just move it to a different spot on the bar but that looks like the best ground back there..

 

[hoss 5,000+ posts]

its been a while now since they installed it.. the HU has been removed a few times so I know they will not try to fix it now.. some ppl have told me that it could be the Y splitter I am using.. the HU has a single plug for the sub input instead of a rca jack.. so I needed a Y splitter.. and then to make it worse.. the Y splitter needed an adapter because it needs an all female Y splitter and I cant find one for Sh*t..lol.. so I added an adapter to make it all female...

Why not run a single RCA all the way to the back, and then do the Y splitter and go to the amps off the splitter? I would bet that your issue is somewhere in the mess of adapters.

You have two sub amps, do your amps have a pass through that you could use?

If all else fails, radio shack has every kind of wire splitter ever made... OR, you could wrap all the adapter connections in electrical tape. If they are the kind of splitters/adapters I am thinking of, they have exposed metal shields that could be touching something.

 

[hoss 5,000+ posts]

the ground for the HU is on the barr behind the dash.. pretty solid metal bar with no paint on it.. lol
I could just move it to a different spot on the bar but that looks like the best ground back there..

What about the factory ground? From the original OEM stereo wiring harness?