reversal

is reversing a forge 007p dv gonna damage my engine? been watchin some vids on you tube where some people have said it is not a good idea.:confused::wtf:

Hi again guys, I've given up trying to get my Aura working, so I've put in my old JVC KD-G701 CD/MP3 player. Is there a knack to swapping the red and yellow wires over on the black 8 pin connector, in order to retain memory? The connections are the standard Seat connections like the ones in...