Previously i have upgraded my HU to a Pioneer double din jobbie.
Which made the speakers sounds heaps better than off the amp.
Issue there is no sub, but still sounded pretty good.
Anyway some of the cones had let go in the rears.
So i just spent the xmas break doing this upgrade.
I replaced the Sub, rears, fronts, amp & dynamated up the doors, shelf etc.
I'm still getting the staging worked out but it sounds amazing in contrast but anything would i guess.
So xmas means some presents etc so i got some new stuff and some old stuff and put it all in the car.
I used:
I had some older SoundStream reference 3 way 6 inches from an older car so i have reused those for the rear doors.

*
*(The ones before these basically the same but blue)
I went with a Soundstream RF8W - 8 inch free to air sub (NEW)

SoundStream RF-60C Splits in the front (NEW) + 1 of the stock tweaters

(i reused the doorcil tweeter and wired it into the crossover as an extra tweater as it was there and sounded pretty good).
Alpine PDX-5 AMP (NEW) (i wanted a under seat install)

Pioneer double din (Older previously installed)
Rear camera, aux in, video out and video in cables run while i was at it.
1x 24 case of Coopers dark ale
DAY 1
So i tackled the sub first, and 7 hours later that was in, mind you i wasn't working flat out i mean it was the holidays.
But still you need to take the whole rear seats out and i needed to make a 15mm spacer to get that b@$t@rd in.
I matted the shelf while i was at it. Not the whole thing but a solid area around the hole all the way to the right and maybe half way to the middle.
I can put it underneeth if i get vibrations anyway.
DAY 2
The doors were easy in comparison but taking another full day to do everything, i needed spacers for those as well, solid 15mm for the fronts and 10mm for the rears.
But i just bought them and saved time making them.
I had to mcguiver the huge tweeters in but i have some pics if people are interested.
The actual cross over was an issue as well but again mcguiver-ing skills were up to the task.
There is a foam section in the bottom left of the front doors near the red light area, i removed that scrapped off the glue them matted that section.
From there i got some 3M double sided car body tape, this stuff is seriously industrial.
I covered the back of the crossovers and stuck it on the matted area with some weights on top and waited an hour.
By the time it has bonded i could pick up the entire door trim just holding the crossover. So i'm fairly sure it's not comming off in a hurry.
Matted the outer metal skin of the doors and the internal sections. I didn't go crazy but covered a decent area.
I have found that you dont need to go bananas but you can't be too stingy.
I tend to save several sheets and wait till i work out what is buzzing later and then add more in those areas, if that makes sence.
But to give you an idea i bought 15 feet and i have maybe 4 left for extra. So i wouldn't say i've been too stingy.
DAY 3
So that had all the speakers in as well as the sub, so it was time to tackle the AMP.
So I've never done a floor /underseat install of an amp before and I wasn't keen on drilling into the floor.
So I got some left over MDF and made up a rectangle slightly larger than the amp.
screwed the amp to that and drilled some ancher holes, i then put the mounting brackets back from the stock amp and got some very large cable ties.
It works nicely and doen't look overly daft, plus importantly no movement etc.
I ran the RCA cables through centre console with the signal switch wire and under the carpet and out through a little hole near the amp.
I found a plastic bung plug covering a spare hole near the handbrake and sanded the paint off to use that with a bolt for the earth.
Running the power cable was a tricky bit but once i worked that out it was about an hour run that.
Had to pull up the passenger side carpet and remove the door sil, i used the large grommet on the passenger side and the hardest part was poking a hole in that thing to get the cable through. But once that was sorted it was a cake walk. used the wire clips along the door and in throught he other side of the amp.
Threw in a fuse near the battery. Fired it up and then played with the speakers wires till they were all firing out the correct speakers.
The sub wire was not run as i forgot, duh! Ehh wait till tomorrow.
DAY 4
So it was all working but i wanted to run the sub cable and while i was at it run a rear camera cable and a aux in cable and ipod cable.
Since the centre console was out i figured what the hey right.
So had to remove the actual lower rear seat only this time, not all of it (15 minutes only, fhew)
So ran them under the rear carpet and up under the seats through the useless cubby ski flappy thingy.
So after that it was all a matter of working out what all the bolts and screws and stuff when were and vaccuming up the little bits of wire housing and bottle caps that were everywhere.
Then i started playing with the staging etc to make it sound right.
I'm mega chuffed with the clarity, it's great. I listen to rock so think greenday, foo fighters, pearl jam, etc so i'm not a doof doof dance man etc so it has base without making your ears bleed and important to me the mids sound great and the highs are cristal clear.
NOTES and TIPS
I'd recommend removing both the front seats for this much work but do the rear stuff first so you can put the rear seats back in so you have a place to work from.
I put the centre mid back in the front doors not hooked up to anything as i could see through the speaker grill that nothing was there and it looked weird.
Now i use to be a huge advocate of twisting speakers and them soldering and heat shrinking and I guess to a point I still am however i recently discovered via a sparky mate some wire joiner products. I think it's from ARLEC and basically it works like an old school TV AMP, you take your wires and feed them into a metal circle area with a screw in the side of it and clamp them all down. Super easy, super fast and removable. I still advocate for massively perminent stuff to run down a solder route but i thought i'd give these things a try.
I also got a bunch of sparky crinkle wrappers for the wires and where i couldn't use that i taped the hell out of them, then taped that to the matted wall so they wouldn't move about.
if you have gloves, wear them, i'm a tallish lad at 6,4 but i also have very large hands. Large hands that are now covered in cuts and were bleading everyday from some sharp thing or bashed other thing. Anyway i didn't find my mechanic gloves till day 4 and by then my hands were sore and they still hurt. OK so maybe some of that is clumsiness/oafishness but not to much of it. Especially running the power cable, and the mat inside the doors. Ouchy knuckles and fingers!
Hope that helps some one with their install.
If your thinking about doing it and have some questions let me know.
Cheers, Scott