Just in case anybody was curious about this I used a spare ocz vertex series 1 ssd in an enclosure and it works without the need for the y cable. Speed I have to say is the same with my 5400 rpm hdd though, but if you want to put the ssd in your glove box or something without the need for a y cable it works very good.

Did you hook the enclosure up directly to the usb cable? Hmmm, that may be what I might do with my spare 120 GB SSD!

What would be an accomplishment is to have a SSD integrated into the AVIC to replace its meager 2GB memory. This would be extremely difficult as the 2GB flash is attached right to the motherboard

was your system any faster because of it or did you just use it for storage like music?