Update 1
- Added some sound/vibration insulation to front door panels
Installed new front and centre speakers
So I chose to upgrade speakers to
BLAM Relax (165RS for front door and 100RC for a centre).
For mounting speakers I used
speaker adapters for honda from aliexpress, used a lot of foam tape and some high density anti vibration foam between metal and adapter.
For tweeters I just used some vibrofilm and jammed them into old tweeter sockets.
I also used some vibrofilm on outside door panel trough speaker hole and some extra vibrofilm on door pockets.
Here are some photos:
Centre speaker was a real pain and still not finished - had to cut out a lot of plastic because speaker is a lot larger than the old one
for now I just used a lot of foam everywhere and jammed that speaker into a new hole. Need to fabricate some brackets to hold the new speaker.
Over all sound quality improved a lot! I was quite surprised to hear so much change in sound quality.