Audio Systems: radio 1997 dodge ram, dodge ram 2500, infinity system

Question
I have a 1997 dodge Ram 2500 with the stock radio/casette player.  it is the infinity system.  I would like to replace it with a newer dodge radio/cd unit.  Can you tell me what newer dodge radios are interchangeable?

Answer
Here is a web site that will have some information useful in the event you plan to do the installation by yourself:

http://www.installdr.com/InstallDocs/DCP/1500Trucks.html

And, the best way to find radios that will fit is at crutchfield.com where you can plow through the "outfit your car" sequence.  Go to this page to start the search:

http://www.crutchfield.com/app/car/carselector.aspx?lp=%2fapp%2fCar%2fMyCar.aspx

Crutchfield has a very extensive data for hundreds of vehicles and they are the best in knowing what works and what fits and how to install the aftermarket radio models.

Best wishes.

PS: If you purchase from them they will supply the wiring harness adapter and installation instructions, but you can buy from any place you like.  It is  a free service they provide in selecting models that fit.