Also, somewhere in my readings it said the speed wire helped the gps unit stay accurate, is this correct?
Also,
In a review at amazon.com someone wrote:
Great System (Once it is installed properly), December 14, 2008
By J. Huften (Pasadena, MD United States) - See all my reviews
I purchased this for our 2005 Honda Odyssey. Crutchfield did not have the
mounting kit so I ordered it from another company. I also purchased the
PAC SWI-PS for the steering wheel buttons. When I tried installing it myself
I had an annoying hiss coming from the speakers. Also, the computer voice
was very scratchy. I called Crutchfield and they sent me a noise filter. I
wasn't sure that was the problem so I checked some forums, avic411.com,
and found that someone else had the same problem and they installed a
PAC OEM-2. The problem stemmed from my factory amp putting off too
much voltage and this PAC OEM-2 allows you to lower the amount of volts
that go into the speakers (or something like that). I ordered one from
Crutchfield. I then paid someone to install it. He did an excellent job. He is
in Baltimore (12 Voltz is the name of his company) and is very reasonably priced. Crutchfield is definitely
a top notch company. They helped me as much as they could through my
first atept at installing this stereo. I literally called them about 15 times.
For the price, this stereo has everything that you want. The sound is
excellent and the navigation works great. So if you have a factory amp and
you are having a hiss (soft shushing noise) from your speakers definitely
order the PAC OEM-2 with this stereo.
product says:
The PAC OEM-2 is a universal sound system interface and controller which can be used for a variety of purposes:
connecting an aftermarket radio to a common-ground speaker system;
converting a factory radio's speaker-level outputs to preamp-level signal that can be connected to aftermarket amplifiers;
adding aftermarket amplifiers to factory premium systems (Bose, JBL, etc.);
connecting an aftermarket radio to a factory amplifier.
The unit has independent level controls for each of its 4 channels, so you can adjust output for any amplifier. It also features remote turn-on outputs for amps and power antennas.
Details:
4-channel input and output wiring
power, switched power, illumination, remote turn-on, and ground connections
input power range: 2 to 60 watts RMS
frequency response 20-20,000 Hz
1-year warranty
I'll figure out this later.I plan to put in the steering wheel adapter.
(note: part of the reason i'm posting this is so I can refer to it later and know where it is)
notable old thread:
https://avic411.com/forum/viewtopic.php?f=1&t=12167