Hey guys/gals, The deck in my 04 g35 sedan has begun to die out, sometimes either on the left or right channel. This usually happens when I'm listening to CDs(retail). If I switch to am/fm I get both channels back, switch back to cd get both back (for a short time, vice versa). Anyways, this is only going to accelerate my plans regarding a stereo upgrade. I have the nav/bose upgrade in the car, was wondering if it's possible to keep the nav functional whilst using a different head unit. I am also curious to know if it's possible to retain the steering wheel functionality with an upgraded deck.
On a side note, it's nice to find out you have an extra $900 sitting around(from months back) that work owes you, due to expenses.

***bonus***