hey guys i have a 02 mini s and i want to put in a double den with navi where my speedo is... so i bought the gauges from a navi mini so i have the speedo and tach all in one and am going to put it where my tach is now.. so my question is has anyone done this because i took it all apart and of course the wires dont all plug in there are two plugs that go into the speedo and one that goes into the tach.. and the one that goes into the tach will fit into my new gauge.. so i'm assuming i'm going to have to look up the wire diagram and go to work but i was just wondering if anyone has done this and give me some advice..