You didn't list the year - on my '05 there is the air intake temp sensor which goes into the back side of the air intake TB hose. Also in that neighborhood are the IAC and TPS connectors, but those are rectangular not square. Very unfortunate about the timing belt problem, considering you had just barely reached the second 60K relacement interval. Did you see any failure in either of the pulleys or the WP, or did it appear to be the belt itself breaking?