+ 1 for under seat amp install.. use seat bolt as ground point and run rca's and remote wire through centre console, i plan on making a custom bracket to secure the amp better though.. also be weary that the climate control almost always pumps hot air to the feet and as such your amp will be getting warm under there so make sure you get something with good cooling capabilities!
Also front tweets are good! i would stick with the stockies tbh, too much fugging around to get some to fit in there.
The parcel shelf of the gen2 is a bit too open in that the speakers dont get good bass, the gen1 has a semi enclosed speaker hole but not so good in gen2.. i spent 4x as much on the speakers for my gen2 as i did on the gen1 and still the gen1 gives you the deep gut bass but gen2 just doesnt kick it
but i wouldnt put boxes on the rear.. the rear window is a bit small and i think you will find your rear too cluttered.. (maybe its possible to enclose the bottom of the speaker holes)?
Alright, So that's head-unit, Amp under seat (it's got a big heatsink) and just going some 6's in the parcel shelf to keep the stock look.
Only issue now is the splits and tweeter problem, I will ask the install bloke about that stuff.
Thanks for the wiring tips!
I guess i will take the door trim off to have a look, The stock tweeters sound alright.