I recently bought the Pioneer Avic-D3 from Circuit City. I got it with a free installation; I just have to by the additional parts. The install guys said that they did not have the Metra XSVI-9003 Wiring Harness and that they needed it for the install. I have a 2003 VW Jetta with a Monsoon Stereo. I ordered the part at another store.. when I get it, will I have to do anything to this for the Bypass to work? I already did the bypass to the wires in the box and I am going to instruct the installer to “Please ground the Parking Break and Mute Wireâ€. Thanks for taking the time out to help me.