hear exhaust in subs

[rumple4skin 10+ year member]

this isnt my car its a friends but he swears with his other amp he didnt have this sound and he got some new monster rca's but i made him hook up his other amp and it still has the sound just much more faint(much lower wattage amp). im figuring its a grounding issue but wanted to see if anyone had this happen to them before and might know if i have to worry about engin grounds or just the ground to the amp and if a ground loop isolator may fix it?

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[rumple4skin 10+ year member]

bump

 

[winkychevelle 10+ year member]

redo the ground first: scrape paint bolt to bare metal with a ring terminal

then see of you can tell the difference in the rcas

and if all else fails get a noise suppressor

 

[rumple4skin 10+ year member]

i looked at it. ground it great power wires are ran on opposite side along with remote all monster cable wiring so id say its satisfactory wires. i was really wondering if there is really any other way that the exhaust noise could get to the subs in the first place. can the exhaust ground cause this? id think that it can not cause this and the only things it can be is rca internal ground issue(doubtful) amp ground issue(doubtful) and hu grounding issue on factory ground(most likely) right?

 

[Suicide Bobb 5,000+ posts]

I wish I could hear my car's exhaust through my sound system! Then I wouldn't need to upgrade to a full 3" to hear the exhaust better!

 

[rumple4skin 10+ year member]

dude has 3.5 inch exhaust, he doesn't need to hear it in the subs. it was not that bad at all with the little 760w amp but once he put the 4k wat amp on it you cant even hear the music anymore.

 

[rumple4skin 10+ year member]

bump

 

[Suicide Bobb 5,000+ posts]

*sigh* you didn't undertand what I was getting at at all

 

[Phoenix Risen 10+ year member]

you need to ground your rcas

on the headunit touch a piece of wire(speaker or other wise) doesnt have to be large, to the exposed metal of one of the rcas, then touch the other end to the case of the headunit, do this while playing it if possible and if that stops the noise than make both ends permanent

 

[thehardknoxlife 10+ year member]

Your not hearing exhaust through the speakers, lulz. 99.9% of the time, alternator noise is caused by a bad ground. It's also know as "engine whine".

 

[Suicide Bobb 5,000+ posts]

Your not hearing exhaust through the speakers, lulz. 99.9% of the time, alternator noise is caused by a bad ground. It's also know as "engine whine".

Dear Lord somebody finally understands what I was getting at!

 

[power-fanatic07 5,000+ posts]

Tha fuck you mean? That means you have a shitty install.

 

[rumple4skin 10+ year member]

oh its the exhaust lol i know what your getting at tho there buddy, its a ground loop issue no matter how you look at it it's a form of engine whine but again all grounds have been checked and re ran by and ase certified tech including the hu ground leaving nothing but the rcs's internal ground....

thanks tho to phoinx tho for acknowledging the proper prob and you can also view a sticky on rca grounding (especially on the pioneer) if you ever encounter this prob. again it is a last resort tho, right before loop isolators anyway.

 

[I Like Waffle]

What kind of car is it?

 

[rumple4skin 10+ year member]

mustang cobra 03

used tv but i know the old owner, they never hurt the sound before this guy but a autoban 2630 on his subs so i made him hook up his old 760w amp and low and behold it still has the sound its just nowhere near as bad.

new rca

2 gauge wiring(new)

remote wire was ran on the side with rca's but i fixed that

hu re grounded to the frame after grinding it down.

ground to amp reset 3 times including under the seat buckle post without the seat buckle in the way for added ground isolation

installed rca loop isolator and get nothing out of rca's at all lol

you can still tap on the hu's ground and hear a big *** pop out of the subs tho so it has to be in the hu

stock alt

no big three

over sized bat but not a dry cell or performance bat