Harness needed?
Thread Starter
Intermediate
Joined: Jun 2009
Posts: 47
Likes: 0
From: Chicago
Harness needed?
Might be transferring a system over from a previous car sometime soon and I've got a quick question...
Originally I used a harness when I put a new head unit into an f-body. Shortly after that though, I added a sub and set of component speakers as well as an amp for each.
Since i'm not using ANY of the stock stereo for this installation, do I need a harness? Or do I just need power/ground to the head unit, remote wires and RCAs to the amps, power/ground to the amps, and speaker wire out to the components?
Originally I used a harness when I put a new head unit into an f-body. Shortly after that though, I added a sub and set of component speakers as well as an amp for each.
Since i'm not using ANY of the stock stereo for this installation, do I need a harness? Or do I just need power/ground to the head unit, remote wires and RCAs to the amps, power/ground to the amps, and speaker wire out to the components?
Tech Contributor
Joined: May 2003
Posts: 7,035
Likes: 134
From: North Augusta, SC
It would be a HUGE help if you mentioned what year/trim car you have 
I'm assuming C5 from where your other posts have been.
If you want to maintain RAP (radio on until you open a door), you'll need something like this.
If you're OK with it just going on/off with the ignition there is a 3-wire pigtail in the upper left corner of the area under the passenger footwell (by the fuse box). Black is ground, orange is constant (fused @ 20a), yellow is switched (also fused @ 20a).
You would be best off if you replaced the stock 'subs' with 6.5" components and put a sub in the back. Click here for a good way to get new speaker mounting plates if you don't want to make your own.
If your HU is single DIN you'll also need an adapter plate. I had one of these with the blue LED's.
I'm assuming C5 from where your other posts have been.
If you want to maintain RAP (radio on until you open a door), you'll need something like this.
If you're OK with it just going on/off with the ignition there is a 3-wire pigtail in the upper left corner of the area under the passenger footwell (by the fuse box). Black is ground, orange is constant (fused @ 20a), yellow is switched (also fused @ 20a).
You would be best off if you replaced the stock 'subs' with 6.5" components and put a sub in the back. Click here for a good way to get new speaker mounting plates if you don't want to make your own.
If your HU is single DIN you'll also need an adapter plate. I had one of these with the blue LED's.
Thread Starter
Intermediate
Joined: Jun 2009
Posts: 47
Likes: 0
From: Chicago
Thanks for the reply and sorry I forgot to list the trim :o
You're correct about the C5, the car is an '03 coupe
As far as replacing the stock speakers, I intend to pull them all and just go with my current JL XR-650 components in the front and my eclipse 12" in the rear.
I still have to decide if I care about RAP but at least now I have all the info I'll need either way.
Thanks again!
You're correct about the C5, the car is an '03 coupe
As far as replacing the stock speakers, I intend to pull them all and just go with my current JL XR-650 components in the front and my eclipse 12" in the rear.
I still have to decide if I care about RAP but at least now I have all the info I'll need either way.
Thanks again!
