looking for a preamp signal in stock head

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=99243
Printed Date: May 10, 2025 at 4:23 AM

Topic: looking for a preamp signal in stock head

Posted By: gslexxx
Subject: looking for a preamp signal in stock head
Date Posted: November 22, 2007 at 12:16 AM

hi, I'm looking to add a kicker cvr12 and an amp to the Mark Lev. system in my 2003 GS300 since the Mark L system produces good higher tone bass but poor low tone bass. My question is where to get a preamp signal that I can use. Whenever I've installed systems in the past, I worked with an aftermarket head with a simple bass output -_- Thanks in advance!

Replies:

Posted By: techman93
Date Posted: November 22, 2007 at 12:35 AM

Amp Turn On     BLACK/ ORANGE     (+)          RADIO HARNESS
     LF Speaker (+)          BLACK
     LF Speaker (-)          WHITE
     RF Speaker (+)          PINK
     RF Speaker (-)          ORANGE
     LR Speaker (+)          RED
     LR Speaker (-)          GREEN
     RR Speaker (+)          LIGHT GREEN
     RR Speaker (-)          VIOLET

use line out converter on rear outs to sub amp. If amplifier in car from factory, then they may be low level.

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The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya

Posted By: gslexxx
Date Posted: November 22, 2007 at 12:43 AM

is there anyway to do it without a line out converter?

Posted By: gslexxx
Date Posted: November 22, 2007 at 1:05 AM

my amp has a high level input so would I be able to use the wires that are connected to the stock sub without frying the stock amp?

Posted By: i am an idiot
Date Posted: November 22, 2007 at 4:47 AM

How many plugs connect to your factory amp? What type of connectors are they? When you find the connector with the wires Techman pointed out to you, Are there other wires on that connector?

Posted By: gslexxx
Date Posted: November 22, 2007 at 10:50 AM

there are 3 connectors to the amp. One is a 12 pin, and two smaller ones. I'm starting to wonder if there is a separate amp for the factory sub too.

Posted By: i am an idiot
Date Posted: November 22, 2007 at 10:53 AM

Did you find the wires Techman identified for you? If so are there other wires on that same plug?

Posted By: gslexxx
Date Posted: November 22, 2007 at 10:39 PM

soldered wires str8 to the factory amp and connected it to high level input on my amp. Worked like a charm.