Made mine (for an 03 E550- dash should be the same) holds 4 guages though..EGT, Trans Temp, Boost and Tach. Not real pretty but works just fine. It sits on the dash next to the drivers side "piller" just below eye level so it's always visable. I think I may still have an extra in the garage. I'll try to get you a pic if you think you mighty want it. Let me know with your email addy and I'll get it out to you. Oh..by the way, if you want to hook up a tahk..its real easy(at least on the 03) and you don't need a special tach..any will do.