how do i wire my amp to mercedes

Hello, first of all i'm new. and I just want to say thanks for the welcome. Now..what i want to know is.. How do I wire my amp To My mercedes.. Model: E320 Year:2000 I have a nissan altima that has an amp and two subs installed. I want to take them out and put them in the benz. I just need a few pointers. Is there something i need to add? cuz my after market stereo that was installed in my nissan already had the rca Ports. What color is the remote wire. Or if anyone has a diagram that would be of much help. NB: i did a search and nothing came up, i searched for my car but the closes thing i found was 1999 E320, is the wiring the same? If so..which one is the remote wire tht goes to the amp Thanks.......

If installing an amp on the factory radio, you will need a Line Out Converter.  This device connects to the speaker wires of the vehicle and steps the voltage down to a suitable level to drive your amplifier.