element-j

Tweeter Upgrade
 
I used Infinity 1001t tweeters to go with the Infinities in the doors.
  This upgrade made a huge difference in the sound - especially at higher levels. Required resetting the head unit controls to back off on the treble.  
  To get at the tweeters, you remove the whole pillar liner. Start at the top, fold back the rubber along the door edge so you can get a screwdriver behind the plastic. Then pry the liner away from the pillar until you can get your fingers under it and gently pull (in the direction of the radio) until it snaps out. Disconnect the wire harness and take the pillar liner & factory tweeter someplace to work on it. Factory tweeters and on-board crossover are both held in place with a plastic bracket. Factory tweeter removed. (In this photo, I also removed the wire harness connector but it's quicker to just cut the wire and leave it in place.) Easiest material to make a replacement bracket out of is aluminum - in this case from a $0.99 section of ductwork from Home Depot. You can cut it with a regular household scissors. Fold it over on itself so it is 3 layers thick, crimp it flat & cut it to the right length to fit in the pillar liner. The Infinities come with a good selection of mounting sleeves for various kinds of installations. (That's one of the tweeters in the foreground.) The one that worked best for me was the simple, short cylinder. Tweeter mount attached to aluminum strip. (Mounting the tweeter into this housing requires pushing it in and rotating it until it locks in place - kind of like a taillight bulb.) Tweeter & aluminum strip mounted in pillar liner. Crossover attached to one of the tweeter mounting screws with large wire tie. All wire splices were soldered and covered with heat-shrink insulation. Wire slack was tightened up with smaller wire ties. Pillar liner ready to re-install. Hardest part was getting the rubber strip along the door back in position over the liner.
Total time: about two hours
 
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