Well i finally got my music back but i now have speaker whine in all 4 speakers, of course. I have a 0 gauge ground running from the seatbelt bolt which i sanded, dye grinded then cleaned down to bare metal to make sure of a good contact point. I also have added a 0gauge ground to the battery terminal, and upgraded all wiring. I am using phoenix gold battery terminals. I am using hte eclipse 8454. I have 8v pres. Are the rcas more sensitive to interfence because of this(I have power and rca on complete opposite sides. I would appreciate anyone who could shed some light on this situation.

 

what about the ground on the HU?

 

try changing ground locations for the hell of it. i had problems as well when i was grounded to the seatbelt bolt too, i've sinced moved my main ground to the left side wall in the trunk on an oem bolt..

 

the ground on the headunit is on one of those metal brackets i cleaned it off and sanded it down. I always thought it was that but i mean it very well could be. Where did you ground it exactly on the strut bolt ?

 

no, don't do the strut bolt..

if you're looking at the trunk from outside, if you take off the carpet/plastic crap to the left there you'll see a metal wall behind it, there was a bolt on there, thats where mine is grounded..

you could also try drilling a hole near the spare tire well that it sits in, throw a bolt on there from underneath (remember to grind down paint and crap obviously) thats where a lot of members do theirs

 

that metal is kind of thin. On that wall not really sure if thats the best spot.

 

I am using 4/0 wiring for my amp grounds about 20 inches long over to a bolt in the trunk next to the spare. I drilled a hole there, and sanded down to the metal. Got rid of my whine... My .02

 

ok so heres the thing.... If i unplug my phoenix gold amp the xenon 1200.1 the whine goes away. Ive tried like 4 different spots to ground it they all do it so what does this mean ?

 

i haven't had a problem yet.

2 amps or 1? do you get whine from the other amp if you have 2? try switching RCAs? stupid question, but the RCAs are sheilded right?

 

i have two amps i have a phoenix gold xenon 1200.1 Class D. Which has dual 4 gauge in and out for power and ground. And i have the Alpine mrv F340 for my speakers. If i unplug the rcas the whine actually goes away, but if i unplug the remote wire from my xenon 1200.1 the alpine amp turns on fine and theres no whine so it cant be the rcas.

 

so the whine is coming from your sub(s) then? and NOT the interiors? try switching the RCAs and see if the whine comes from the interiors instead.

when i had a whine problem with my sub it was the amp, switched amps and nothing else and the whine disappeared.

 

ive switched rcas unplugged and plugged them, new grounds for the headunit and amp several different places. Still no luck.... Whenever the xenon 1200.1 isnt plugged in there is no whine in my highs amp. As soon as the xenon 1200.1 is plugged in the whine is back what the hell could the problem be ? I am really frustrated ive always grounded to the seat belt bolt in a maxima and its always worked great. Infact i just did it and hes running a similiar amount of power and his speakers dont wine. Any help id appreciate it.

 

I think its the VI!!!!!!!!! lol



























Maybe a ground loop issue on the amp. Is the chassis of hte amp grounded by screws or anything? if so re-mount it on osome mdf.

 

OK SOOOOOOOOOO its not the rcas. And its not the ground. SOOooooo. Im assuming my headunit is bad ?

 

might be just the amp itself. ive had problems with whine with amps, switched them, changed NOTHING ELSE, and the whine was gone.. my friend put the same old whiny amp in his car, and boom, speaker whine. and yes, the whine started all of a sudden (back when it was in my car)..

 

but why would the phoenix gold amp cause this it is not even related to my highs. GRRRRRRRRR.

 

My vote goes to the amp.

 

well i still have a warranty on it and i cant remember but i thought there might have been a issue with the pg xenon 1200.1 with a whining problem. Im gonna go yell at pg tommorow.

 

yea i have the same problem also. thinking it's the amp. let us know how it turns out.

 

the thing is the amp thats causing the whine isnt related to my highs amp. Its my sub amp thats causing this whole disaster.

 

Swap in a diff amp or have it bench tested / swap it into someone elses car.

 

I was reading in one of the Soundstream amp manuals (http://www.soundstream.com/manuals/A...VGA-manual.pdf)that if your amp is over 300w (RMS I assume), you should wire the ground to the battery, not the chassis. It also mentions to use a ground wire of the same size or larger as the power wire (common knowledge) and to run power/ground on one side of the car, while the RCAs are on the other side (also common knowledge). I'm not sure if the ground-to-battery is a good idea, but sounded interesting.

 

running 0 gauge all around.

 

+1 on your amp. I had the same problem and drove myself half crazy changing grounds ect. I changed the amp out and the whine went away.....cheap jvc crap..... My amps are grounded at the seat belt bolt in the back seat too and no whine now. Mine worked when I used the strut bolt in the trunk as a ground too so although its true that neither location is the best place to ground, both work fine.

 

so you're telling him to make the ground wire for his amp(s) ~16 ft long??

 

I'm not "telling" him to do anything. I'm just quoting an old Soundstream manual. I thought it strange that they would advise that.

 

Bollwerk, what you said is fine. It's up to dacman whether or not running a ground wire all they way back to the battery is worth the additional time and money. There's nothing wrong with making a 16 foot ground wire if the amp is 16 ft from the battery. Either way the electrons will travel approximately 16 ft. Connecting the amp directly to the battery may result in less noise because of the other devices in the car that might cause interference. Of course noise could also get in the wire as well if its not protected.

I believe the amp is at fault in this case. Most amps are designed with filters to take the induced noise. If they aren't working you'll probably hear your alternator singing.

 

from everything I was taught the ground should be as short as possible...the power wire is where you have more wiggle room.

 

i believe i heard this from Don himself, correct me if im wrong.

 

power and grounds should always be AS SHORT AS POSSIBLE ESPECIALLY THE GROUND. However i was reading the ppi manual and they did say to run it directly to the battery but thats like another 80 $ in 0 gauge wiring. Which i could completely understand if there wasnt a sufficient ground in the maxima but there is and the seat belt bolt is more then plenty sufficient in this case. Ive swapped another pg xenon 1200.1 and it works fine with no whining so in my case it is the amp. Ive used that ground on multiple maxima installs with up to 3 amps on that same ground and its worked great.

 

interesting..I had a hunch it might be the PG. warranty?

 

yeah that really sucks, sorry man. well i bet you got the warranty this time, or again, right?

 

yea i have a warrnaty im just gonna sell it. And get something else read my other post and give me some amp suggestions. Need an amp thatll do 2.67 @ 1200~1500rms

 

have u tried a ground loop isolator?

 

why 2.67?

10 things

 

3 D4 subs wired up correctly can either come out to .67, or 2.67. Ground loops isolaters dont eliminate the problem, then only help make it less audible.