OK, million dollar quesiton.
On my 03 Accord w/NAV I have the install scheduled for tomorrow on their MP3 player....$500.
This is on top of the 6CD in dash changer that it comes with. Im wondering if I couldnt just change the head on that player instead of adding the MP3 player. The only thing Im scared of is messing with the GPS and all that other good stuff, since it is all integrated. Any thoughts? Anyone know if there is a way around this. Can I simply change the head unit? I cant stand normal CDs......I have to change disks soo many times during a long drive instead of just having 1 disk with 140-180 songs.

I know the GPS is tied into the radio since it speaks to you. (If you dont have the pin for the stereo, the GPS's voice wont work...freaky).