hey there am from the uk, just thought i would show you what i have done with my audio install.
I have an 51reg IS200 an i decided to upgrade the stock system to the following
headunit: alpine cda9887R
Front end: hertz mille2
sub:hertz mille 2500
Processor:audison bit one(tuning in progress)
amp:hertz hp4
rear fill: NONE, 6x9's removed to lett bass in to car
cable: chord carnival silverscreen
dynamat extreme
rca: audison sonus
stock amp removed and harness adapter fitted
http://i1012.photobucket.com/albums/af248/jefweezy/harness.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/alpinecda9887R.jpg
Made copies of my a pillars from fibreglass resin and material incase i mess up
http://i1012.photobucket.com/albums/af248/jefweezy/pillar.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020266.jpg
Once tweeter angle was achieved, the baffle was mounted and smoothed with bondo.
http://i1012.photobucket.com/albums/af248/jefweezy/tweet.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020275.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020278.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/front.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/bitone.jpg
Doors were fully dynamatted and baffles made out of 2 pieces of 12mm mdf bonded and coated together with resin to produce a solid waterproof baffle,which were bolted to the door skins.
http://i1012.photobucket.com/albums/af248/jefweezy/door.jpg
The holes either side of the sub is were i removed the supports to route the cables and rca's, they were replaced later.
http://i1012.photobucket.com/albums/af248/jefweezy/bkseat.jpg
i used the cover off the back seats(below) as a template that would fit between the wheel arches to mount amps and crossovers.
http://i1012.photobucket.com/albums/af248/jefweezy/card.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020282.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020285.jpg
http://i1012.photobucket.com/albums/af248/jefweezy/L1020281.jpg
Wiring will be tidied up later