etong

yea i think it definitely helps if you know a little bit about the roads there but that was not my case and i had to depend on the navi

i was leaving from northern blvd, the mapquest way is to take cross island pkwy to GWB to turnpike. I just don't understand why the navi doesn't give me that route as one of the choices. Guess i'll just mapquest next time

i already tried that, none of them takes you to GWB. They all eventually lead to the city and 495.

I have a D3 and it always tells me to go through manhattan city whenever i drive from Queens NY back home to new jersey. I've looked at multiple routes and fast/slow options and they all directed me to the city eventually. Mapquest directs me to take Cross Island Pkwy to George Washington bridge then to NJ turnpike which is WAY easier and faster. I'm sorry if i offend anyone for saying this but manhattan city has the worst roads and traffics i can imagine. So my question is how do you guys deal with this? do you mapquest instead? The D3 seems like to avoid easy roads and freeways as much as possible and take me to the roads with tons of traffic lights for some strange reasons. Yea sure you can set roads to avoid if you know your way around but it isn't helpful for me.

edited for spelling

are you using a harness with RCA cables? if so i would get something like this instead....which is what i did.

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This is so ridiculous. This is the third Pioneer Unit I have had with the same whine problem. Also, this is the second amp as well. I have grounded, regrounded the HU and the amp. I have tried grounding the RCAs with no effect at all. I have Stinger Expert Series RCA cables, D3, MTX Thunder Amp. I guess I am going to try that ground loop isolator that PAC makes. The whine only happens with the engine running. In accessory mode everything is fine. What the hell...I am so frustrated.

after i switched to all wire harness with no rca cables, the whine disappeared and also the HU doesn't make a buzzing sound when the car is turned on. you might want to try that.

i did the bose amp bypass and greatly improved the static noise that i heard from the beeps and voice guidance.

i went ahead and got a all wire harness w/o any RCA cables. It stopped 95% of the whine and no buzzing. Still a little whistle when all the lights and a/c are on, but i can live with it. But now whenever the voice guidance or beeps come on or press any of the menu buttons, i can hear a static in the background and it's not a clear sound. I think maybe the bose amp needs to be bypassed?

my d3 was locked also at one time until i reset it (at the front) with a pen. not sure why it did that.

i didn't understand the part he said about grounding the rca sheilds either. He must be talking about the rca cables off the unit and harness because there's none connecting to the amp. Care to explain?

this is what my harness looks like btw:

so to ground the D2 chassis, you use a wire and hook it up to the back screw of the unit and the other end to the car chassis? also which chassis bolt off the car did you use? i have the same car

after some research, the factory amp has no rca plugs, they are just wires

if the rca cables are bad, i need to replace the whole harness?

the buzzing noise disappeared when i unplugged the front output RCA cables. I also saw no other bolt i could use for grounding besides the one i'm using now.

It's not gone, but it's greatly reduced although still unacceptable. I don't know about the sound quality though, it's hard to do an A/B comparison. I wouldn't be surprised if the quality is getting hurt a bit though.

 

Here's some other things I'm going to look at:

 

http://www.termpro.com/articles/noise.html

 

The forums on Termpro seemed to indicate that Pioneer units have an issue with grounding, which would explain why my unit developed a problem after several months:

 

"The pioneer radios have an internal ground that will burn out when your amp has a bad ground, the amp will try to ground itself through the shield of the rca wires & it will burn out this ground in the deck. i have seen this many times, the best way to fix this is to ground the shield of the rcas to the back of the head unit. this will not harm the amp or head unit."

how exactly do you ground the shield of the rca cables? tape them to the headunit?

nah, it's just a regular one. No Bose to worry about.

 

Oddly enough, I've got a surround-sound processor that I've had to unplug because Circuit City is saying is problematic as well. It also makes a constant buzzing/humming noise. I'm wondering if the power connectors are an issue. The way they have them set up, it's splitting the power (yellow wire) off the factory harness 3 ways - to the D2, to the XM receiver, and to the processor.

 

Some of the unused RCAs are uncapped as well, I'll wrap them up in some electrical tape and see if that helps.

you don't hear the whine anymore after using ground loop isolators? any loss of sound quality?

I have this problem with my D2 in my Acura RSX as well; it wasn't an issue at first but seemed to develop over time. I've had it back to Circuit City twice, both times they said that I got a defective head unit. So I checked it out myself.

 

All the vehicle grounds converge on one spot (the ground connection on the wire harness), and I've installed ground loop isolators on the audio out connectors. That takes care of 80% of the alternator whine, but I still hear a constant buzzing, almost like a 1940's tube radio not tuned into anything. Before I go through the hassle of returning the unit, I'm going to put a self-tapping screw into the chassis and try grounding to that instead of through the wire harness.

 

Also, the engine whine gets louder when I have the air conditioning on.

do you have type-s? i wonder if it has anything to do with the factory bose amp

separating the grounds was a mistake. You want to have as few grounds as possible. Double,triple, qua.. you get the point from whatsportsfan21 said. thats a great suggestion since usually multi grounds and dirty grounds say to painted surfaces are to blame. also, if you have amplifiers or anything the power and ground wires should be the same size.

I'm going to attempt finding another spot to ground it because right now it's grounded to a bolt directly behind the unit and it has 2 other ground wires connected to that spot already.

ever since i installed the D3 in my acura, it makes a whine or whistle noise when the car moves. It gets louder in relation to the RPM. We've already tried regrounding to a different location and attempted to seperate the wires and cables still no help. It also makes a "buzzing" noise when it's on. Any ideas on what to do?