i was after a pioneer 3300bt but that seems to have been replaced by the 2400bt and the only difference appears to be a lack of an sd card slot ( unless anyone knows of other differences?)

i have a reversing camera and would like a tv tuner for it also ( not that i have the stereo yet lol) but my question is can you get a gps add on for it.

not the pioneer thing which is probably £300, something cheap like the ebay tv tuners?