i have a 2002 Toyota Rav4. I made the gigantic mistake of hooking up my battery with the terminals reversed. I managed to change it over after realizing this, but now I have no electronics. My car starts but I have no display, electronics or anything else. can anybody help me out????? any possible answers???? I have checked all the fuses, in the engine and in the dash. they all seem to be good!!!!!! thanks