Anyone know the wiring pin-out on a factory 2000+ HU?

In an effort to skin a cat quickly I used the "lighter" circuit for
my remote turn on lead. You vet'* know that the only switch'd
source is the 2 circuits from the under hood panel "accessory"
and "lighter".

Since it was a short run to tap into the back-seat console lighter
and only a matter of fishing wire from the battery bay to the console
this circuit made for a simple solution to the remote lead issue.

The hook is this... I have some notable "humm" from the hi-level
inputs. It'* not ign wine and in fact it'* not an issue with the system
running. But when the radio is off it'* like background white noise.

If the door is opened the radio shuts off... and the amp still has power
it falls silent (no noise at all). As long as the clock is on the noise exists.

So I'm back to the dreaded find a remote lead that raises 12v
with the HU being ON and dropping current with it off.
Yes the HU has the ribbon cable.

Anyone with the service manuals have a minute?!

Won't eliminate the noise issue but with the music
on it'* not noticed anyway....

Really not wanting to insert an on-off switch....

Really want to make wife happy....
(sure you understand my delemma)

Thanks!

1st Q. Are you only trying to hook up a headunit right now?
It'* been a while for me, but on my 01 ssei, I believe we taped into the ignition switch, everything tapped into came from steering colum. Don't remember using anything off the PIN connector, might of though. Ran all new speaker wire and everything.

As for the hum, I had some noises myself after everything was hooked back up and turned on. First I'd recomend replacing the factory grounds with some good ones, rig one right off the battery to frame and Alternator to Frame, this helped a lot for me. I also ran 3 sets of RCA'* for my setup and end up moving them around thinking it was interference, but it wasn't, even ran a set outside the car to the trunk, noise was still there.

Let me know if you need more help.

Thanks for the responce...

No new HU, using the factory unit...

Wiring up an amp and new drivers and it'* really well
worth the effort. Less than 200 bucks for the system
and she rocks hard... but like everyone else, needs more
low end... (just procured (from dumpster) and rebuilt a solid
pair of 15" infinity drivers for all of 25 bucks for new surrounds)

Anyway the noise is from using the hi-level input from the
factory speaker leads into the amp. The amp'* gain has
got to be at minimum to tolerate it... Just annoying when
the radio is off.

I 'T' tapped into the cigar lighter in the rear of the console
since I didn't want hooked into the accessory circuit for the
"remote" turn on lead.

Which leads me to the usual checks of grounds...
If I use the amp'* ground (straight to battery) for the
hi-level "star" ground I get ign noise. If I remove the
hi-level ground the signal is so weak by the time the
amp is gained up to match the noise is back.

The odd thing is when the HU is "off" with no clock
displayed the amp is silent (yes it'* still powered)

Thus my desire to then tap into the HU itself to
power the amp, then ifin the radio is off so is
the amp and the noise.

I'll be ripping it apart this weekend and will gladly
post any results (if there is a hot lead to be found)
to help anyone else facing this scenario....

Which when searching the archives seems to be
a mystery on 2k and newer B'villes ... where to
best wire the remote turn on lead. Really thought
I had found a good compromise even though the
lighter'* fuse has to be placed in the "turn off"
position in the front fuse box.

Still working out the bugs BUT we'll get a good solution!

Donno if'in it would help but a get an ever so faint
"click" when the break is applied and an interesting
buzz when the lights "theater" dim. Otherwise I'm
very pleased with the LACK of noise in the system
(so used to choking out ign noise with big amps)

Thanks again for the post....

Hope you figure it out, sounds like you will.
Good luck and enjoy