noise from crossovers?

[poopdeck 10+ year member]

hey guys (and gals)

im having some trouble with an alternator whine. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif ive regrounded everything headunit, amps, etc. ran new power and ground wires (speaker too) and the darn thing is still there. so my question to you is does having the crossovers for my comps close together cause noise? (the noise only happens when to car is on, when it just accesories it sounds great) the two sets of comps are dynaudio 240 GT's and CDT eurosports ES-643 braxs. any help you be great thanks!

also i took pictures of my install that ill be posting later..thanks again

Click to read more...

 

[ANeonRider 10+ year member]

Disconnect the RCA's from each amp (do an amp at a time) and see if the noise is still there or not. If it is, then it is a ground problem with the amp, if it isn't, then its the deck. What headunit are you using?

 

[poopdeck 10+ year member]

the headunit is kenwood excelon DDX7015 that is only about 2 weeks old (new stuff breaks too) http://www.crutchfield.com/S-nKRYG9XuBkC/cgi-bin/ProdView.asp?g=168550&I=113DDX7015

would it be a defective headunit, or something in the wiring?...the HU is grounded back to the battery

 

[ANeonRider 10+ year member]

Just do the test and come back.

 

[poopdeck 10+ year member]

alright i did the test, i still have the noise through all the amps when i disconnect them one by one, the ground for these cant get any better...im using 1/0 guage ground wire (2 gauge power) with a streetwires "tri ground" bolt (3 screws) and the paint has been scraped off. H/U problem or bad alternator..or possibly all of the above

 

[ANeonRider 10+ year member]

Ok, so the noise is still there when you disconnect the RCA's? The deck is not the problem. Try re-grounding everything under the hood (battery, alternator) and see if that helps.

 

[poopdeck 10+ year member]

if i run an new wire to the battery. what gauge should it be? i have every kind avaliable. same with the alternator, or should i still use the factory wiring?

 

[ANeonRider 10+ year member]

1/0 gauge. Might as well do the other piece of the Big 3 while you are at it too, the alternator to battery part.

 

[poopdeck 10+ year member]

all 3 1/0 gauge?

 

[ANeonRider 10+ year member]

yup