Dash kit:
Stereo Install Dash Kit Dodge Viper 02 03 04 - eBay (item 110128804592 end time Jan-07-09 13:29:16 PST)
One thing to remember, none of them have the same texture as your dash, and they don't fit perfectly FYI

I didn't like mine at first but Im kinda used to it now.
Wiring kit:
Dodge VIPER 05 2005 Car Stereo Wire harness - eBay (item 120307055465 end time Jan-15-09 17:26:55 PST)
They're all the same regardless of brand. Color to color, its easy, just remember you need to hook up the blue amplifier wire to use existing factory amplifier.
If you choose not to use the factory amplifier you'll have to run new speaker wires. I used my factory amp, as its still better than deck power.
On second thought, the dash kit still bugs me