2000 sebring amp question

crutch - there are two types of preamp signal output :  line level and speaker level.  Line level is low noise, low voltage.  Speaker level is higher noise, higher voltage.  Aftermarket decks provide line level preamp outputs, which is the cleanest signal, but OEM decks do not.  As hobobasher said, you have to get the preamp signal from the OEM deck's speaker outputs.

This is generally accomplished by choosing either front or rear, both L and R, and "tapping" the wires.  The insulation has to be removed from a small area of the wire but the wire does not have to be severed.  You can keep the speakers attached to the wire if you wish and they will continue to get their amplified sound from the deck.  But if that pair of speakers is going to be powered by the aftermarket amplifier, remove the factory wiring from them first;  a speaker can be powered by only one amplifier.

Use a high quality adjustable line output converter (LOC).  It will have gain controls that you can adjust for highest quality sound.  The cheaper ones (with no gains) are preset and you are taking a gamble that they will be set to the output voltage of your OEM deck...they will usually work but the sound may not be as good as it could be.  The LOC converts the speaker level signal to a signal that will be accepted by the line level inputs on the amplifier.  It is still not as clean as an original preamp line level signal, but that's the breaks when you want to keep the OEM deck.  Which makes it all the more important not to scrimp on cost when you're choosing which LOC to use.  You can use either 2 channel or 4 channel depending on how you want to set up the system.  If your amp has a speaker level input, consider it to be the least desirable way to go...so don't use it.

When you remove the insulation to attach the LOC wires, be sure to solder the connection and tape it up.  To keep the preamp signal wiring at the shortest length possible, usually the rear speaker wires are tapped if that is closest to your amp location.

yes exactly what stevdart said he explains what i said better than i could. thank you i just couldent find the right words to explain it