hello again ,just wondering if any one has tim pressure gauges fitted to there cars mine had three (volts ,oil ,temp) not connected up got the volts sorted , now trying to sort out the other two ,have bought the correct sender units for them plus the t-piece .my first question is have i fitted this correctly ie tim oil temp gauge sender unit into t-piece, than orignal temp unit screwed into t-piece as well, than screwed into oil cooler housing orignal wire is yellow on the temp unit .my next question wher do i fit the tim water temp sender unit i know i have to remove one but which one,and do i have to piggy back the wires to make both tim and mfa temp work, pics if poss thanks in advance .car is a mk2 16v on a h plate.ps sorry for the essay .max