I should have clearified. You can't replace the BOSE HU with Nav. OP has Nav. Regular BOSE HU without Nav you can replace :tiphat:

After you changed the Bose HU, can you still use the factory mic and steering wheel control?

No you can keep steering wheel controls but factory mic you would have to hard wire into but I recommend using the mic that comes with the new head unit for best results.

Hey pfdaxe did you ever carry on and get the rest of the speakers swapped out? New loc and amp etc. I really like my sub and want to keep going but wanted to hear how you made out first!

Here ya go:

:happydance:

Click here:

http://www.the370z.com/2171529-post53.html
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Thanks for the links guys, I'll start digging.

I'm not sure why there seems to be so much hatred towards the nav system HU in general. Sure I get that Bose doesn't sound as badass as a complete aftermarket setup, but I've rolled with aftermarket double DIN navs in the past (Pioneer AVIC-D3) and I was definitely not impressed with the navigation. I'm pretty sure that my current nav is Navteq and my previous Pioneer was Teleatlas, in my opinion Navteq is far superior in quality. Again, this might just be psychosomatic but it feels much higher quality. Also, I've never had an aftermarket bluetooth handsfree integration work as well as stock factory one. This of course excludes the Zs just because no matter what mic system you have the road noise makes it useless.

Cheers!

Thanks and looks like you went all out! Glad it worked out for you and nice write up.
Time for me to go shopping. :tup: