Can we make a sticky...
 

Called "Best stereo upgrade for people who don't care to spend much on their system but can't stand how crappy the base/Nismo system is"

I for one would love to see that thread and I'm sure many others would too :-)

There are plenty of threads about what to get, also I do not think it would be a good idea because models change every year. Most brands such as alpine, kenwood, jvc, clarion, and pioneer have great bang for the buck head units.

To answer the question... as of right now...

Depends on what your budget is but if you wanted to get a nice stereo with Bluetooth, DVD/CD and USB, something like the Pioneer AVH-P2400BT is an awesome choice.

$280 on Amazon