I have a TT 6-speed and I replaced the spark plugs last night. The wire connectors that connect to the top coils were already brittle and the connector broke on it (on the wiring harness, not the coil pack.) I went to the Toyota dealership and they don't offer just the connectors, they said that I have to buy the whole harness ($1200)! Surly someone else has run into this problem. Any help is greatly appriaciated!