gimp

I have just imported a R34 gt-t 4 door and it has sat nav and tv where most have boost guages and stuff . What i need to know is where i can get the software for the sat nav and who can re program the tv so it picks up ozzy channels . Any help would be greatly appreciated . My wife and i have had skylines all of our driving years from 1978 models up and wouldn't look at anything else. Hope we dont have to get after market stuff to replace the original. Thanks to anyone who can help.