So i decided to go with new speakers for my Zr6. The stock ones just didn't sound right. Bass seemed uncontrolled, and there wasn't enough crispness in the high ranges.
Since the stock speakers are 6x9 all round with tweeters in the top of the dash, i decided to get a set of eclipse 6x9 4 ways to replace the 4 6x9's in the car. I decided to leave the factory tweeters in the top of the dash to help with the staging.
Here are some photos.
1. Removal of door trim was easy, just remove the grab handle cover, and door handle cover and remove the three screws. The trim then just pulled away from the door. There are clips all around the trim to hold it in place.
2. You can then see that the speaker has odd mounting points, the hole in the door is much much larger than a standard 6x9 speaker. You can also see that the oem speaker has a plastic frame, i bet its worth about 50c.
3. Once removing the speaker, i needed to remove the green plastic mountig plugs. They protruded from the door frame and wouldn't have allowed the new baffle to sit flush against the door panel.
4. I then made a cardboard template for the new baffle base. I used the template and cut out the baffle with my jigsaw, i used the template provided with the speakers to cut out a speaker hole in the new baffle. I mounted the baffle in place using nuts and bolts through the existing holes. I also used a 2mm rubber under the baffle againt the door frame to ensure a perfect seal.
5. The new speakers were still too deep to mount directly on the new baffle, they would have hit the window. So i made another spacer out of MDF to mount onto the baffle. This allowed me to mount and screw the speaker directly onto the main baffle.
6. Once the front doors were done, i moved onto the back speakers. Removing the rear speakers involves (in this order) Removing the seat base, the seat belt bolts at the base, the seat back, the left and right c pillar trims, and then the parcel shelf.
The speakers are mounted on the deck with bolts, easy enough to undo. Again the holes are too big for a standard 6x9 so i made another plywood baffle using the factory speaker as a shape template. I cut out the baffle and then screwed the speaker to it before mounting the baffle. I then mounted the entire baffle/speaker in once piece. This made it easier to work under the glass. The baffle screwed into the factory mounting positions.
The baffles also provide enough clearance for the bottom of the speakers against the boot springs.
I only have one photo of the rear, as my camera battery ran out, and i couldn't be bothered waiting for it to recharge.
RESULT: The difference is absolutely astounding!!! Nice tight controlled bass, crisp clear highs, and a sweet mid range. The amp in the head unit has no problems driving these speakers. The timber baffles i'm sure help dramatically with the sound quality. All in all i'm really happy with the new speakers and my install. Not one hole was drilled or cut into the car. No rattles or unwanted vibrations in the car either. It would simply be a matter of unscrewing the new speakers baffles and screwing in the original speakers to restore the car to factory condition.