Thanks a lot ShinySideUp! I had to read how a relay worked before I understood your text. But now it makes totally sense. http://www.12voltplanet.co.uk/relay-guide.html Simplest would be to buy a four pins relay with a built in fuse. I guess it doesn't matter if it's a 20A or 30A relay because what matters is the size of the fuse I'll put in. Then I can put in a standard 5A fuse instead of glass fuse that was included on the charger cable. http://www.amazon.co.uk/Fused-4-Pin...UTF8&qid=1429859624&sr=8-1&keywords=12v+relay I might actually put it additional chargers now when I have to wire everything from scratch and it won't be much extra work. Connect as you said before but with modification: 1. Connect a 4 pin relay with a 10A fuse. Or a relay with two outputs and a separate fuse earlier. 2. From 87 on the relay I connect two cables (will this work or is it better to connect with two outputs?) 3a - Cable 1: For underneath the saddle. Connect a 5A fuse on cable. On other end I connect a 12V lighter socket so I can be flexible with different inserts to the socket. If I have saddlebags I can put electrical devices into them and charge them from here. http://www.ebay.co.uk/itm/Motorcycl...010?pt=LH_DefaultDomain_3&hash=item51b128a962 3b - Cable 2: For charging phone at the front. Connect a 5A fuse on cable. On other end I connect my mobile charger I shown earlier. Thank you for the advice so far. Do you think this could work and is a good idea? Any improvements on my idea?