I hooked up my D3 i'm still not exactly sure about the hook up but all the colors matched except for the ILL cord but i plugged everything up and grounded it but it won't turn on.

-I didn't solder the connection.... Is that a must for it to turn on...

-I only plugged up the power and the rca do you have to plug up anything else for it to turn on

first off what kind of car is it? what brand parts are you using

first off what kind of car is it? what brand parts are you using

It's a 07 Altima and i'm using a metra 70-7552 wire harness

I finally found my color code chart and it says that the blue/white cord that i have on the wire harness is used for "amp turn-on" and i have it connected to the the ILL cord which is more than likely wrong, but if i disconnected it i have nothing to connect to the ILL wire... Is that okay?