When my Z still lived
with its previous owner, it was broken into and the stereo was stolen.
Bastards also tore the driver's window seal... but that's another
story. The frame that surrounds the radio and climate controls was
completely mangled. I found another one on eBay, and picked up the
block off plate and wiring harness from Best Buy's installation
When going to wire up the new door and rear speakers, I came across
the sad fact that the 300ZX has a common ground speaker system,
which most modern audio equipment doesn't like too much. It can
prevent the front/rear or left/right faders from working properly,
and at worst, cause problems with current transfer (shorts) in your
amplifier circuitry. On the other hand, some people have said that
they have not had any problems with the stock wiring. So who knows.
I decided to rewire it all, so that I would not have to worry about
it later down the road.
It is a pretty big pain in the butt to do the front speaker wiring,
because you have to take it through the "S" shaped rubber
tubing between the door frame and door. I got through that part
by feeding the wire through with a long pair of forceps. The rears
are pretty easy; just undo the panels and it won't be a problem.
At the time that I was doing the rest of my wiring, I ran the wiring
that I would need for a subwoofer box in the back of the hatch.
This was a power lead which I tapped into the main 12v bus at the
fusebox and fused with a blade type automotive fuse; a sheilded
set of RCA cables to carry the signal from the head unit's preouts;
and a smaller gauge wire for the amplifier remote power signal.
6.5" speakers are a direct replacement for the stock units.
It is my opinion that though the 6.5"s can sound pretty good,
they will definitely require the use of subwoofers for realistic
musical reproduction; they just can't handle the low end.
My old subwoofer box included a pair of 10" Kenwood subs and a
500w amp. The box was orignially a full range setup, but I have
disconnected the other speakers and the crossover network inside
the box. The crossover function is handled by the amp. I am working
on a fiberglass subwoofer enclosure,
and that will use a single 12" sub. I am making the change
to a single 12 from dual 10s for a little better low end reproduction,
and I don't need the huge power of two subs in the small space inside
the Z. The subs are leftover form my last car, an Oldsmobile Cutlass
Ciera, where they were in the trunk, and had to project through
the rear seats to be heard. I sold this box, amp and subs to a friend of mine.
The headunit is a Kenwood MPV-7019 MP3 receiver. It handles 50w
per channel (four). It has an OEL display and can do 63 different
colors for the background. I picked an orange-yellow that pretty
much matches the stock lighting. The keys can light up red or green,
so I set them to red, and they match also. The speakers are Pioneer
|Head unit during the day
||The Kenwood head unit at night
||Old Kenwood Box