500tie

Looking at the pictures mate I can just about make out where someone has previously fibre glassed and filled the original holes, there was only ever 2 designs of curvy SV the naked and faired. Your indicator mirrors are defiantly a cheap aftermarket addition that's why the carbon effect is the same as the dash. The relay should be under the seats amongst the bits you have already taken apart. The only thing I can suggest is to try and trace the wires and check them over as they may have been added by a baffoon who hasn't wired them properly. Your tail tidy will look much better in the original black plastic keeping it a little more original