The Lee Auto Parts link appears to be dead. I'd like to post a working link at Grubbs Performance, but the rules of this forum don't let me post a link until I have made 15 posts- (what idiot made that rule?)
This one works to get the Nissan factory installation instructions:
grubbsperformance.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=TitanAudio
just add the http and the www to the front
I just installed one, took about 45 minutes. The hook-up is really easy, but using the new OEM brackets is a bit of a pain to wiggle the parts back in.
I bought my set-up from mynissanparts.com and activation is easy.