Hey guys im looking for a little help, a friend of mine has a punto grande evo, interior heaters have given up the ghost, was only working on #4 for long enough, now its totally dead, i thought it mght be a switch, but have since heard that a "heater block" is more likely to be the problem, anyone help me with location of said block, and how to remove and refit without damaging anythjng, its a 10 plate, and dont want to treat it like one of my "future classics" lol