| Author | Message | ||
     Matt Jablonski (M4ttjabz) New Member Username: M4ttjabz Post Number: 12 Registered: 06-2003 |
I hooked up a Pioneer deck using a volkswagen harness and it plays just fine, but it makes a whirring sound and as I accerlate the noise gets louder. I know there some ground fault thats hooked up to the amps, because its amplifying the acceleration. Has anyone else had this problem? How do you fix it? -Matt | ||
| Jess Brandt (Disco285) Member Username: Disco285 Post Number: 117 Registered: 09-2002 |
if you figure it out let me know... | ||
| Ken Tipton (Irish_nv) Member Username: Irish_nv Post Number: 111 Registered: 10-2002 |
did you bypass the amps? You should have and the speakers should run straight off the head unit. Also on the back of the pioneer is a spot to add a ground (right in the center is a spot for a screw) ground that directly to the chassis it may help | ||
| Matt Jablonski (M4ttjabz) New Member Username: M4ttjabz Post Number: 14 Registered: 06-2003 |
No, I did not bypass the amps, I have them hooked up. How would I go about bypassing the amps without running new wire? -Matt | ||
| Joe M. (Little_joe) Member Username: Little_joe Post Number: 164 Registered: 11-2002 |
You'll likely have to run new wire since the speakers are wired back to the amps, unless you cut and bridge around the amps. I've not heard anyone who's successfully eliminated all humming when retaining the factory amps. I tried that converter from Crutchfield (Pacific-something) and a Scosche, and it still hums. I'll rewire as time allows. joe | ||
| Luke Tolson (Luke4696) Member Username: Luke4696 Post Number: 153 Registered: 06-2003 |
So is some whirring to be expected? -Luke p.s. Joe, did you get the note I sent about the D1 parts? | ||
| Danno (Danno) Senior Member Username: Danno Post Number: 261 Registered: 08-2002 |
no humming here, and i've had a Sony unit in there since 97 and now a Alpine. | ||
| Joe M. (Little_joe) Member Username: Little_joe Post Number: 165 Registered: 11-2002 |
Danno, how did you wire it? I need to see it.  Luke, I'll check email when I get home this evening. joe | ||
| Danno (Danno) Senior Member Username: Danno Post Number: 262 Registered: 08-2002 |
ok, i lied... i was just in the Disco. there is a very slight buzz, but only noticable when the volume is all the way down. used a line level converter to lower the signal coming from the head going to the amps. | ||
| dareDVL (Daredvl) Member Username: Daredvl Post Number: 78 Registered: 03-2003 |
Make sure deck is grounded and use a quality line-level output converter. | ||
| Matt Jablonski (M4ttjabz) New Member Username: M4ttjabz Post Number: 16 Registered: 06-2003 |
I had the Will at crutchfield take a look at it and he said the only way would be to rewire and bypass the amps, but if I did this, I would loose power to the subwoofers. We tried every inline noise reduction unit they have and nothing helped. We tried grounding all of the grounds together and grounding right off the metal of the deck and it did not help. At first we used a OEM-2 adapter, but that didn't help so we just wired it straight through without any adapter. I've been at Crutchfield every day since Friday, I think they're getting tired of me. Any ideas that don't involve a lot of money and the disassembly of my rover? -Matt | ||
| Tbow (Tbow) Member Username: Tbow Post Number: 123 Registered: 12-2002 |
The only way I've found has been to rewire and bypass the factory amp. If your deck has a subwoofer outlet, you can also connect to the subwoofer wires and it should work fine. The amp for the subwoofers is located in the back with the subs. It's really not that hard or require major disassembly. | ||
| Chad Meyer (Ccdm3) Member Username: Ccdm3 Post Number: 148 Registered: 07-2002 |
Usually when you have ground noise it is not system related. It is typically a bad ground elsewhere in the vehicle, usually the engine. Try changing or cleaning up the engine ground and battery ground. Also, make sure you have the correct antenna adaptor and that it is in all of the way. A loose or incorrect antenna adaptor will cause engine noise as well. Do not use the factory stereo ground in the dash. Make a new one. Also, I would leave the factory amp grounds where they are. The best you could do would be to clean them up. Try removing paint at the grounding points and maybe replacing the wire, but don't move it. The noise should be before the head unit, so anything after the RCA cables is pretty much in the clear. When you add a new head unit you are increasing the signal strength from that point on. The cause of the noise was there before, just not noticable. If you use a high output line-level adaptor you are just amplifing that bad signal. | ||
| Joe M. (Little_joe) Member Username: Little_joe Post Number: 166 Registered: 11-2002 |
Matt, I did the exact same thing - was on the phone with them for several hours over a few days, nothing worked. Tried every config possible. I just live with the hum for the time being (which is only audible when there's no music or volume is very low), until I rewire it. The line-level converter mentioned above sounds as if it may be worth a try too. joe |
