Hi I am trying to install a Pioneer Avic-N1 in my 02 Lancer. I have already wired the harness, but there are a total of 3 wires I have no idea where they go. There are 2 black wires which I am not sure what they are and then there is a green wire which states to connect to the power side of the parking brake switch. I don't know where that is. I have looked around in this forum and on others and have not been able to find any info on this matter. If you need to see pictures so you know what I mean please let me know and I will post pics. So any info give will be very helpful and appreciated. Thanks in advance.

If you have the ORIGINAL discs that came with it, then just ground that light green wire. This is what will unlock your controls.