2003 Passat, how do i add a sub?

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=63861
Printed Date: July 06, 2025 at 7:44 PM

Topic: 2003 Passat, how do i add a sub?

Posted By: youngone
Subject: 2003 Passat, how do i add a sub?
Date Posted: October 05, 2005 at 5:17 PM

i have a 2003 Volkswagen Passat 1.8 turbo, monsoon stereo and it is fine but i want more bass. i would like to know how i can put a sub in the back. i know how to hoke up the power and the ground. but i dont know how to hoke the stock hu that dosent have the RCA conections that run to the amp. how am i going to hoke up the amp so it can get a signale. i want to use the stock system i gust want to put a sub in the back. i know that there is an amp that is mounted back in the trunk that came with the stock system to power the components. is there eny way i can use the input that is going into that to hoke it up sum way to an RCA cable and still have the stock speakers going kind of like a splice to get the signal to the amp. or do i have to hoke the RCA cable to the stock hu some how. how can i do this. i have no idea, i have looked around for a way to do this but no findings.
one other Q is there a remote start cable that turns on the stock amp that can i splice that to start the amp for the sub. there is also a cd changer compartment that has a hoke up but i think that is only for an auxin. please eny help would be really helpful. i am totaly stuck.

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Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in

Replies:

Posted By: youngone
Date Posted: October 05, 2005 at 5:39 PM

hear are some pics

posted_image

the stock hu
posted_image

the conections to the back of the stock amp
posted_image

the compartmont for the cd changer. you can see the connecter in the middle
if you need any info/pics gust ask and ill have them up as soon as possible.

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Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in

Posted By: gus1
Date Posted: October 05, 2005 at 7:34 PM

This should help...

Good starting point..

Gus

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Wherever I go, that is where I end up......

Posted By: youngone
Date Posted: October 06, 2005 at 5:12 PM

thanks man i needed that info. this forum is awsome thanks everyone. posted_image

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Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in