My install consisted of :
https://www.amazon.com/dp/ (commissions earned) {front dash} with
600hz Bass Blockers
https://www.amazon.com/dp/ (commissions earned) {front door}
https://www.amazon.com/dp/ (commissions earned) {rear door}
I did the front dash first without the blockers. I drove around with them on for about a day and I was surprised at the improvement in clarity. Looking back I would have stopped at the front dash speakers and dropped in a powered sub in the cargo area keeping the stock front & rear spkrs.
Since I had all the speakers, blockers, and tools I decided to continue replacing the speakers. I relied heavily on this forum and the contributing information from users @cmceleste, @nizzy115, @hollis, @tibimakai, @v8toilet and some others.
IMHO the DB651s have a better full sound vs the DB651 spkrs. I ran into some challenges installing the DB651s because they would not fit in the prefab front speaker housings. The diameter of the DB651s is much smaller than the DB651 and leaves no room to secure or anchor the speaker with screws to the plastic speaker mount. I briefly thought about using a hypoxy glue to bond the metal to the plastic yet there was still not enough surface space between both to create a bond.
I bought this
pine board at home depot for $2.88. The first 2 cuts are free so I had them cut 2 9.5x10 pieces. I invited a friend over for beers and asked him to round the corners and cut out the center with his jigsaw. I used these pieces to mount the DB651s in the front doors.
DB651s mounted in front door
I added the bass blockers to the front dash and then mounted the rear speakers easily using the included spacers.
I had a hell of a time putting the door panels back on. Remove the weather trim from the door panel and attach it to the door first before putting the panel back on. It makes putting the panels on easier. They slide out (See pics below). I was a bit concerned if this would introduce any water leaks into the doors but it didn't. It rained over the weekend and I removed the panels again to check for leaks and moisture.
Placing weather trim on door & in the slot between windows and door.
Overall I'm pleased with the audio quality of the polk speakers however I'm disappointed at the lack of low end. I have to turn the bass up all the way to get a barely decent bass sound. There was definitely better bass in the factory speakers but the muddiness of the audio is what made me look into replacing the spkrs in the first place. Clarity was introduced with the install of the front dash speakers (without the Bass Blockers ) and the factory spkrs. I can only guess it's the head unit not being able drive the polk audio speakers. I plan on adding a powered sub in the cargo area. This was my plan from the get but if I still am not pleased with the current sound of the polk speakers then I'll amp them as well. I think adding the sub will be fine though as the volume levels are great and I really like the clarity and cleanness mid to highs of the polk spkrs.
My next project will be to add sound deadening material to the doors. Should I place the material over all the wiring or should I cut out slots and run the wiring on top of the material?
My other question is if there is a way I can tap into the back of the head unit to add a line level converter for an amped sub?
