Went oiver to cartunes today and they gave me a quote for this setup

Metra DD - 200
Nissan pin - 16
Kenwood HU (He says best and favorite one) - 800
Cable - 23
Focal polyglass V2 6.5 2 way - 430
Focal access 4 coax - 140
alpine 100wx4 amp - 250
Wiring - 80
labor - 350
wiring - 32

total 2,481

Tell me what you think! btw i already have a JL 12w3 sub and boston gt22 amp powering it

 

Let me say it looks like a solid system. The only thing I would be concerned about is the Metra DD kit. It looks really cheap. I would suggest getting the JDM dash kit from a place like grubbs or Riverside Infiniti. Check the 05+ DD kit sticky above. Its made by Nissan so it looks identical to the OEM. Also the access 4 isn't a model number, so I'm assuming he meant a 4" access coax, which won't fit anywhere in the car. You'll need either the 6.5" for the rear, or 6x9's for the rear deck. Either way focal makes access coax's in both these sizes.
Cheers

 

well the guys at cartunes said theyve installed the metra with no problems.. i mean its saving 100 bucks. i dont care if its JDM or not really

 

the 4 inch speakers are in the coupe in behind the front seats. I think the focal K2s MAY be a lil over priced. mine cost me 450 cdn. Course I had a tight link to the shop owner so that may have played a factor.
you're going to notice a HUGE increase in sound quality!
great system though - I agree with the JDM kit though

 

alright, yeah i put in a bid to a JDM one on ebay. cant wait to get this installed!

 

You could make 4" fit, but the stock rear speaker is definitely a 6.5".