headunit confusion

ok so I went on crutchfield looking for headunit for my 07 dodge ram 1500 quad cab bighorn addition wanting the pioneer deh80prs they say it doesn't fit my car. went to sonic .they say it does. can anyone clarify this? will it fit or not? if so what parts will I need i.e harnesses, adapter kit ect. Im planning on clarus 6.5 fronts going active which is why I wanted the pioneer.
thanks

that pioneer is a single DIN radio, it will fit your dodge, the only issue may be the depth so you might have to cut some plastic out from behind the radio and maybe even the old radio support bar for the poineer to fit properly.if you want that radio bad enough then its only a matter of a little extra work to install.

does your truck have the factory infinity system? go to www.metraonline.com to look up your dash kit and antenna adapter and i would buy your wire harness adapter from a PAC authorized dealer. i would buy the CAN-bus adapter harness so that you can keep the factory data bus working for diagnostics and other vehicle functions. BUT i wouldnt run the audio through the adapter, i would run all new speaker wire from the amps to each speaker to totally bypass the factory wiring. if you are going for a high end system then you should do it the best way possible.

thanks a lot. I will check site. yes I have the infinity system 7 speakers stock 6-disk radio no navigation. I plan on running all new wires thanks. plan is pioneer 80prs, hat clarus 6.5 active, and 2 10' subs.