Does anyone have a link to the DIY for 03-04 Double Din install? I cannot seem to find one via search, only the 05-07 install which isn't the same, correct?

Also, will my OEM navigation be unaffected by installing an aftermarket head unit with the double din kit? I am leaning now towards the 99-7604 Metra Dash kit, as it includes the A/C controls for Dual Zone climate.

The only harnesses I need are the Nissan radio harness (which should be the same as ALL other Nissan harnesses from the mid 90's until present???) and the Nissan Diversity adapter for the antenna, correct?

Finally, what did you use to fill up 1 din space, if using a 1 din head unit (I will be using the 1 din Alpine CDA-9887).

Thx