Hello, I have had my smart only for a few days now and plan to install a double Din on Saturday.. I got the wire harness and face plate from 4smartcar.com and have alread wired up the harness to the Clarion double din touch panel multimedia (MAX385VD) but there is one wire that has to be connected to the parking brake wire in order for the audio to show up on the screen.. Does anyone know where this wire is and is there an easy access to it without taking up the carpet? One other question is there a way to by pass this so audio can be on when car is running? Please help..