Hi Hope you can help. I've read the threads I can find about additional 12v sockets which have all helped but I'm still a little confused being new to electrics. I get the whole Watts/volts = amps.. thanks to one of the earlier posts for explaining how that works.
What I'm actually trying to do is fit an additional 12v socket which is a Blue Sea Systems double USB socket. I wanted to know can I just splice into the original 12v lighter socket cables... I think I spotted on a different site that Green is ignition live, Black is Earth and I can ignore the Red/orange cable as thats the illumination cable. But I imagine I'll need to put in an inline fuse that feeds the live on the slave unit... what kind of size fuse should I use... its says maximum output 5v/2.1Amp so 2A fuse? Also will this method of piggy backing work as I need both the original lighter socket and the new 12v USB. I'll only be feeding an iPhone and a Sat Nav at most.
thanks for your help in advance.
Shorty