Need some in dash audio help.

osirus

Most of the suggestions you will find are like the ones listed above. I have personally just finished the install in my 370z and it's the following components. I decided I want a full complete sound with clean crisp mids and highs, and just enough thump to complete the ensemble. AS for HU, I would seriously look at any of the Pioneer Units, even some of the Kenwood Excelon units as well. Crutchfield is a great resource for this.

Here is what I have and where / what I paid -

Head Unit :
Model year July 2011 - Pioneer AVIC X930BT 6.1" DVD/CD NAV/BT/SIRIUS/XM/DIVX HU
Pawn Shop near Downtown Dallas - 165.00$ Out the door with all harnesses, GPS antenna, USB Plug/Harness wire, BT Microphone - NO DAMAGE

Speakers
Doors : Focal ISC 165 6.5 - Component Mid/Tweeter System (Amp-able or PREAmp Capable) - Retail Paid Car Toys in DFW - 243.00$ with adapters

AMPS -
Xtant 4.4 - 4 Channel Amp to power the doors and any additional components for the front system - Craigslist 125.00$
Alpine MRX-M50 Class D - Mono AMP - 300W RMS x 1 - SonicElectronix - 179.99$

Subwoofer -
Q-Fabrications Sealed box - Kicker L5 Subwoofer.

I did all the install myself as I have my MECP and do this on the weekends for a shop in DFW on the side. Everything was soldered at the HU connections and then quick tapped if needed for adjustments in regards to bypasses ;-). Amps Were installed in the VOID under the cross member FOAM. Wires were run up the Center console and along the passenger footwell for power up thru the grommet to the Engine Bay.
If you would like or have any questions, please feel free to msg me.