massive confusion, 2002 chrysler 300m
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=123599
Printed Date: April 27, 2024 at 6:05 PM
Topic: massive confusion, 2002 chrysler 300m
Posted By: loud02special
Subject: massive confusion, 2002 chrysler 300m
Date Posted: September 20, 2010 at 11:06 AM
Basics:
2002 Chrysler 300M Special
160a Police Package Alt
Optima Red Top
1/0 big three, and power wire to the trunk
Kicker ZX1000.1, ZX350.4, Factory RB1 Navigation radio (made by Alpine). LOC running from the two front channels.
5 farad cap
Ground run from the 1000.1 is less than 6 inches, less than 14" on the 350.4, both grounded at the same point.
2 x Boston Acoustics G512 subs, single 4 ohm voice coil. Wired in parallel, 2 chamber sealed box.
I have been experiencing some issues that have been getting progressively worse over the last few months. When I push the brake pedal, use the turn signal, or sometimes even use my power window, both amps shut off for a second, and then boot right back up. I checked all connections, tightened up the positive line on the cap just for ha has cause it was a hair loose. Remote signal while car is running is 13.4 to 13.5V, drop to 12.9 to 13.1 when brake pedal is pressed, certainly not that low. Today I put the meter on the positive leads of both amps and found the ZX1000.1 turning on and off and getting 15.4 to 15.5V Stable! It then went down to a stable 14.4 after a minute or so, no rhyme or reason. I'm ready to rip this whole thing out and sell it. PLEASE, any help is appreciated.
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2002 Chrysler 300M Special
Replies:
Posted By: loud02special
Date Posted: September 20, 2010 at 11:08 AM
Forgot, the 4 mid speakers are all infinity, all 2 ohms. The 350.4 is rated and is running at 90x4 RMS at 2 ohms per channel.
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2002 Chrysler 300M Special
Posted By: DYohn
Date Posted: September 20, 2010 at 11:15 AM
I suspect the issue is the OEM radio. What are you using as remote turn on for the amps? ------------- Support the12volt.com
Posted By: loud02special
Date Posted: September 20, 2010 at 11:20 AM
The remote is the factory remote lead that went into the 360 watt Infinity factory amp in the trunk. That amp is disconnected and removed. I swapped out the factory head units (I have another factory unit on hand) and the issue was the same, no change.
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2002 Chrysler 300M Special
Posted By: DYohn
Date Posted: September 20, 2010 at 11:29 AM
I suggest trying a different remote turn on. Find a circuit, any circuit in your car that tuns on and off with the key and wire the amps to turn on and off with that. See if it helps. ------------- Support the12volt.com
Posted By: ben d.
Date Posted: September 20, 2010 at 5:13 PM
Where are the grounds for the amps made... Just because they are short enough doesn't mean it's a good ground or in the proper place.
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2008 Dodge Ram 1500
MECP Certified Advanced Installer CEA 191700
Posted By: loud02special
Date Posted: September 20, 2010 at 5:44 PM
ben d. wrote:
Where are the grounds for the amps made... Just because they are short enough doesn't mean it's a good ground or in the proper place.
The ground is on the chassis of the car, sanded down to bare metal.
DYohn - What about using a relay as well?
Another thing I noticed today is even when the radio is off (the clock displays on the screen when the radio is off) the numbers of the time flicker a bit when I push the brake pedal.
I guess I'll start with running the new remote as suggested. As mentioned above, should I use a relay and outside power source? ------------- 2002 Chrysler 300M Special
Posted By: 66sportfury
Date Posted: September 21, 2010 at 1:31 AM
my girl has a 07 kia and i hooked the amps up to the remote wire from the deck, and noticed that when i turn it up to 20 the amp will shut off, i went thru the system and found the remote wire was only putting out 6.5 volts, relay time,
check your volts at the remote and see what you got. mite be the same as my problem? ------------- ac delco am radio and sparkomatic 40 watt sound exploder
Posted By: oldspark
Date Posted: September 21, 2010 at 5:04 AM
And ensure good alternator-battery power...
At first I was thinking weak battery, but your later descriptions are like bad alternator power connection....
Feel for hot spots in the cables & joints.
I'm assuming ground connections are ok - especially alternator (engine) to body/chassis.
Posted By: DYohn
Date Posted: September 21, 2010 at 1:28 PM
No need to use a relay, but it also sounds like you may have an electrical issue in your car that has nothing to do with the amps you've added. If the OEM head unit is "flickering" and you haven't changed anything in the wiring harness, you have a problem in your vehicle electrical system that will likely require a trip to the shop. ------------- Support the12volt.com
Posted By: loud02special
Date Posted: September 21, 2010 at 9:50 PM
Yeah, one of the members of the LH platform site that I help run (no links allowed) actually pointed out he had this same issue because of worn down section in the wiring harness in the floor. I'll be investigating further in the next couple days, gonna have to pull the front pass. seat and probably the rear seat.
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2002 Chrysler 300M Special
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