we had to replace our JDM unit in our VX here in Oz as I tried the expander, but still got scratchy reception, boosted the antennae with an amp..still crappy..then after all that the screen shat itself..so we put in an Alpine W200 double din unit single CD/DVD unit 4x50 watt, the rear camera hooked straight upto it..works perfectly [great picture..!!]..touch screen etc..and a better sound..with more power

Equivalent o'seas models are the W202 or W205 from Alpine..which I believe enable TV tuners and /or GPS from Alpine to work thru the touch screen..I didn't go that far. I was always hoping my screen would hold out, but we tried to live with a compromised tuner setup with the JDM, but when the screen pooped itself, it was time for an upgrade..

Hope this helps

David