im sure it does, but the plug which you get with a new headunit, also has, switched live, perm live and earth, aswell as the wires for the speakers
thats the point im making......it bypasses the amp anyway...why buy another plug with leads on
I get ya, i did this orginally but trying to find the 3 wires in question can be a bit tricky if you dont know what your doing. i had to cut the 3 wires from the factory wires to get the power needed, which means it will be very hard to convert back to the orginal setup. I just think this ISO cable makes it easier for people that aren't too sure what to do