Right guys, I need some help. have wired up new Kenwood KMR-558 (4 speaker wires, perm +ve, ign +ve and ground. Power Amp doesn't work and I now realise I have to power the amp from the head unit. Can someone confirm I use the head unit switched 12v output to power up the amp, but what colour wire in the OEM connector do I connect to ?


Mick