A:Answeryou should be able to keep the one you have it will plug into the stereo in the back. That was my reason for the purchase i wanted to put a backup camera in. I was told by the installer that if i already had one it would have worked.
A:Answerthe reception is good but i also installed a new antenna you may want to check with the best buy team to see if you really need a new stereo or just a better antenna.