Re: a limited, though viable alternative...
So Scorp965,
Following your suggestion to keep the OEM interior appearance, the items needed are (please correct me if I am wrong), 1 navpod, 1 Carportal V500, 1 LZ702-W touchscreen, 1 G510 navi unit and 1 iPod Cable.
By purchasing these parts, I can hook the stock HU, stock CD changer (or an updated one, since it doesn't matter because it sit in the trunk), G510 and iPod cable to the V500 and ouptput the display to the LZ702-W touchscreen in the navpod and make a seamless transition from 1990 to 2009? Brilliant idea!!! Are you having someone to put all these together or doing it yourself? If you are having someone to do this, please pass along the info. If you are doing it yourself...can you help me by giving me more details on the installation? Thanks in advance....
Hello,
I did the installation myself, but any stereo shop should be able to do it (experience with kenwood is a plus).
With regard to the CD changer, you would need to replace your OEM unit with a cd changer produced by Kenwood, that is compatible with their interface bus; if you have a 1991 or 1992 (no passenger airbag), you could install this cd changer in the glovebox, otherwise, you would need to run a cable to the trunk to replace the factory/alpine bus cable.
Essentially your stereo becomes the Kenwood V500, this controls all of your audio, as well as navi, etc. - the V500 outputs would then be connected to an 'aux in' interface attached to the CD changer port of your stock deck, similar to how people get their ipods to work with the oem stereo. You would use the kenwood touchscreen for everything but volume, you would leave the OEM deck on the 'cd changer' option, and use its volume knob to control the audio level. You could opt to retain AM/FM on the stock deck if that is your preference, or switch the antenna over to the V500 and use it for AM/FM.
This is assuming you're looking to replace your sound system with one that allows for increased features, such as satellite radio, full ipod integration, bluetooth integration, backup camera, etc. - all of which is possible with the Kenwood carportal. In addition, the V500 has two external switches, which you could use with a relay to operate other powered devices, such as a garage door opener, or integrated radar detector, from the touchscreen.
If these advanced features are not important to you, if all you require is navi, the installation is much simplier, you could leave out the V500, purchase instead only a screen and the G510, and leave the stock deck in place for AM/FM, and CD changer control. Alternatively, Alpine produces a screen with integrated speakers, and bluetooth functionality; hook their screen up to a blackbird portable navi, and you now have navi and phone integration in a navpod, independent from your factory stereo system. It really depends on what features are important to you, what you require dictates what kind of system is needed - there is also the Kenwood carportal V1000, which offers even more inputs, for additional devices.
In either case, the stock deck remains in the center console, the stock center console is untouched, and a touchscreen in a factory nav pod is installed in place of the upper central vent.
In my installation, as you can see, I removed the stock deck entirely, I am using the V500 as a standalone stereo, so it is connected directly from its preouts to the factory stereo harness, much like an aftermarket stereo. The V500 turns on the factory nsx amplifiers when powered on, and volume is controlled either via the touch screen, or through the hard buttons on the monitor.