Once the METRA harnesses came in I installed my new Infinity 3 1/2s. No way would I install new speakers without them. Install was really simple. Pop the speaker grill of, remove two screws and the factory speaker, install Metra harness and new speaker with factory screws. Total install took about 15 minutes. This is a must do for $70!!
Stock 'alpine' beside new Infinity
All nice and snug in his new home