Their Bose head units aren't too bad, but their non-Bose equipment leaves a lot to be desired. The factory sound system in my work truck (Nissan Frontier King cab XE) does not sound good at all. The worst sounding stock stereo out of any Nissan product I've ever owned or driven bar none.
Resurrecting a thread from the dead here...
The factory head unit, including the way the system is wired, leaves a lot to be desired.
I'm 2 months into ownership of a gently-used '04 King Cab XE.
As far as audio is concerned, at first I blamed the factory (non-Bose) head unit. I replaced it with a Kenwood head unit (KDC-BT762HD), which helped but the sound still seemed lacking. I had nearly convinced myself that the tweeters were baked until I pulled out the schematic in my Haynes manual...
THEN... I found a big piece of the puzzle:
The factory wiring for the two-door Frontier puts the door speakers on the rear channel and the 'premium' A-pillar tweeters on the front channel. Maybe the Bose head unit makes good use of that configuration, but the factory head unit can't. My Kenwood couldn't either.
I managed to flip it into something totally Kick by rewiring the factory outputs to put the door speakers and A-piller tweeters on the front channel, then adding in a pair of surface-mount speakers (Pioneer TS-X150) on the rear channel.