Any clues, having bought a 2011 freelander 2, want to change the basic stereo for double din, aftermarket connectors not working, 1 didn’t fit (too many prongs) the other fitted but didn’t power up?? Is there a special connector? There are 2 blocks coming from vehicle (1 i presume connects to clock on dashboard) and other is for radio, however both aftermarket only have 1 block to connect??