A.M. band line noise
This is a discussion on A.M. band line noise within the Stereo and Electronics forums, part of the General Help category; Hey all, I have a 2002 Trans Am WS-6 6m equipped with the Monsoon 10 speaker 500watt system and 12 ...
09-13-2010, 09:37 AM #1
A.M. band line noise
I have a 2002 Trans Am WS-6 6m equipped with the Monsoon 10 speaker 500watt system and 12 disk remote C.D. changer and steering wheel controlls. that is having A.M. noise problems (yeah, I know, who listens to A.M. .... ME!!)
As a point of refference, my wifes Celica GT's A.M. reception is prefect, but in the same areas , I get al lot of line noise and (mostly) can't pick local A.M. stations up. When I can pick it up, theres a lot of static that seems to be line noise. When the ignition is off, or I am not using power accessories (power seat, windows, defogger, etc. ), the line noise is reduced. My F.M. bands are fine. My local audio shop put an amplified A.M./F.M. antennae and a y-connecter to the head unit (so both antenae can help reception) and it didnt do anything. We had the radios tuner tested and was fine. We then tried using an in line noise filter that did nothing to reduce the noise, even worse it had the radio on a "hot" circuit all the time and I had to turn the radio off after turning the ignition off and removing the key after opeing the door,(so I had them remove it after a day).
Now apprantly ,before I owned the car, the car had some aftermarket equipment in the trunk (probably an amp I guess) noted by the blue and red wires I removed from the trunk up to the drivers kick panel. The audio shop that this had little relevance to my problem. I really like to keep up on the news on the way to and fro class and Id rather not buy a portable radio to put in the passenger seat to do it. Does anyone have any insight on how I may beat this problem?
10-01-2010, 12:46 PM #2
10-05-2010, 03:28 PM #3
If you've had all that checked out and it's not a wiring or antenna problem, beats me
10-05-2010, 04:49 PM #4
Sounds like you have a short or a open somewhere. You are going to have to check almost every connection. I would check the alt and battery area first. I would check to make sure you got everything around the kick panel etc. Do the plugs have the shields and good boots. IMO there are so many things it could be it will be a process of elimination. No clue how the previous owner installed the aftermarket stuff. Some people to the install correct. Others just hack and install.
10-05-2010, 05:22 PM #5
- Join Date
- Feb 2006
- Westchester, NY
- 1996 Camaro Z28 vert
Also check the plug wires. Some will have higher emi interference. This could be why it gets better with the car off. And like said check all grounds and battery connections.
10-06-2010, 04:42 PM #6
I also triple checked the part numbers for the plugs and they were the right ones. I'll check the battery connections next.
As far as aftermarket stuff, as far as I can tell, there aren't any aftermant parts in it. Its stock. It did get smacked in the front end (bumper cover replaced), I'll check around the cover area too.
10-06-2010, 06:10 PM #7
The aftermarket stuff I am talking about is what you said. "the car had some aftermarket "stereo" equipment in the trunk". That is the aftermarket parts I am talking about. Again I would check the work or how they installed it. Your shorting or grounding out... Tracking down an electrical is one of the hardest things to do.
10-07-2010, 03:48 PM #8
Yes, I did. I thought you had meant aftermarket ignition parts (my brain got locked on the "spark plugs and wires" mode), sorry. Suffering a little "drain bammage" from to much of credit load in school, lol.
Yeah, it appeared that the orignial owner had put an amp or kicker box or something in the trunk. But the dealer that sold and State inspected it had removed it. Last year I tracked down, and removed, a translucent blue wire and a translucent red wire . The red wire was no longer attached to anything on either end, so it came all of the way out. I couldnt find where it had been spliced into previously. As far as the blue wire, it went from the trunk to the "A" pillar/ underside of the dash on the drivers side.I cut it down as far as I could under there and wrapped the exposed end with electrical tape as to not let it create a short (irony, isn't it?).
I guess I have to dismantle the dash now, don't I?
10-07-2010, 04:50 PM #9
I'm just wondering... is the stock amp hooked up or is it still bypassed from when the other amp and sub box were installed?
10-07-2010, 06:16 PM #10
10-08-2010, 09:31 AM #11
Just to be safe, where is the amp, and how do I check to see if its connected/working??
10-08-2010, 11:33 AM #12
10-10-2010, 06:32 AM #13
10-10-2010, 09:06 AM #14
I see if I can find one. If not, I'll try to take one later on for you
10-10-2010, 10:27 AM #15
I did a search online and was able to copy a picture for you from another site
10-10-2010, 03:18 PM #16
10-11-2010, 04:09 PM #17
Okay, I did look in that area. As long as that darker rectangular area is indented, I do have that.
10-11-2010, 06:45 PM #18
10-11-2010, 07:02 PM #19
10-11-2010, 07:25 PM #20
Well, at least they didn't leave you amp-less when they took out the other subs and amp.
And, now you know where the amp is and what it looks like
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