Click Here For Pioneer Car Electronics Product Manuals (pioneerelectronics.com)
Pioneer has many of its car audio/video and security manuals available for download in pdf format. After following the link, select your product line and product category, and then drill down to find your model.
Click Here For JVC User Manuals (jvcservice.com)
JVC has some of its car and home audio/video owner’s manuals available for download in pdf format. They also have gif’s of some of the car receiver plug pinouts. The link above will take you to a page with a search box. Just enter the model number in the search box.
Click Here For Yaesu Owner’s Manuals (yaesu.com)
Yaesu has some of its owner’s manuals available for download in pdf. The link above will take you to a search page where you can enter the model number. When entering the model, you will want to enter the hyphen in the model name. For example, I got 2 results when I entered ft817 as the search criteria, but I got 9 results when I entered ft-817. I also noticed that no results were returned when I tried to find a manual for either the FT-747 or FT-757.
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Update September 15, 2008:
It appears that Yaesu only has current models on their website. I found older models at the [Fox Tango Library Website](http://foxtango.ham-radio-op.net/ “Fox Tango Library Website”).
Click Here For Icom America Manuals (icomamerica.com)
Icom has manuals, brochures, and catalogs for its ham radios, marine radios, avionics radios, family radios, land mobile radios, and receivers available to download in pdf format.
They also have images of many of their radios availble for download, too. The images are zipped tif files.
Click Here For Kenwood Ham Radio Manuals (kenwoodusa.com)
Kenwood has many of its ham radio owner’s manuals, service bulletins, application notes, brochures, and connector diagrams available for download in pdf format.
Click Here For Kenwood Home and Car Audio Manuals (kenwoodusa.com)
Kenwood has many of its home and car audio and video owner’s manuals available for download in pdf format.
The Philippine Macintosh Users Group has a review of the KCA-420I. They liked the great sound, the small size, easy install, the charging of the Ipod while it’s connected to the KCA-420I, and the ability of the Ipod to go into Pause mode after the vehicle’s ignition is turned off. They did not like the user interface. They also have a short video showing what it’s like to use the KCA-420I.
Which Alpine headunits are compatible with the KCA-420I Alpine-to-Ipod interface?
Alpine states on page 6 of the KCA-420I’s owner’s manual that it will only work with 2004 and up AI-NET compatible head units. Here’s a list of the head units Alpine says are compatible:
There’s a thread on iPodLounge where people who have installed the KCA-420I discuss their experiences. Some of them got the KCA-420I to work with older AI-NET head units that are not in Alpine’s list. Some of the head units that worked:
Alpine has the owner’s manual for the KCA-420I (620k pdf) Alpine-to-Ipod interface available on their site .
Crutchfield Advisor – Digital Music & MP3 Players – Review of Alpine KCA-420i iPod Interface Adapter
Crutchfield reviews the KCA-420i Alpine-to-Ipod adapter. The only real complaints are the lack of a true scroll wheel and the inablility to display info on more than 512 playlists or more than 255 tracks in a single playlist.
Playlist: Review: Alpine KCA-420i iPod Interface
Playlistmag.com reviews the Alpine KCA-420i interface which connects and Ipod to a 2004 or later Alpine Ai-Net car receiver. They liked the interface but found some quirks/limitations. As I write this, it looks like Crutchfield has the KCA-420i in stock. Personally, I think I’ll wait and see if the 2005 Alpine receivers fix the quirks/limitations.