MARLEY Posted June 10, 2013 Share Posted June 10, 2013 I am currently rewiring my towbar electrics and I'm also adding a 12s plug too (white one). To save running several 12 volt feeds to it can I simply run 1 direct from battery to supply its power ?? If this is possible then what amp wire shall I use ?? Many thanks Paul Quote Link to comment Share on other sites More sharing options...
simonaldridge82 Posted June 10, 2013 Share Posted June 10, 2013 hi I have just wired up my car for caravanning. you will need to run a 40amp cable from the fuse box passenger well to the rear of the car. I fitted a towing relay because this dose all the work rather than running up to 4 cables from the front. you can use the spare orange wire in the right hand side of the boot and change the fuse for a 30amp. but you may need more current than it can supply safely. I used this wire to power up the running lights via a canbus relay. anyway I would run the one wire. the fuse box will drop down and you can connect to a main feed wire from the battery ( a permanent live ) bare a small portion of the wire and solder this connection and put on plenty of insulation. leave your self a few inches of wire and fit an inline fuse. remove the fuse until all your wiring has been fitted. run the wire to a caravan towing relay and the numbers on the relay relate to the pin numbers on your 12s socket. hope this helps simon Quote Link to comment Share on other sites More sharing options...
MARLEY Posted June 10, 2013 Author Share Posted June 10, 2013 hi I have just wired up my car for caravanning. you will need to run a 40amp cable from the fuse box passenger well to the rear of the car. I fitted a towing relay because this dose all the work rather than running up to 4 cables from the front. you can use the spare orange wire in the right hand side of the boot and change the fuse for a 30amp. but you may need more current than it can supply safely. I used this wire to power up the running lights via a canbus relay. anyway I would run the one wire. the fuse box will drop down and you can connect to a main feed wire from the battery ( a permanent live ) bare a small portion of the wire and solder this connection and put on plenty of insulation. leave your self a few inches of wire and fit an inline fuse. remove the fuse until all your wiring has been fitted. run the wire to a caravan towing relay and the numbers on the relay relate to the pin numbers on your 12s socket. hope this helps simon this info has saved me a lot of work running wires through car, So basically run I wire at 40amp with a 30amp fuse and this will supply fridge/ charger etc ? Regards Paul Quote Link to comment Share on other sites More sharing options...
simonaldridge82 Posted June 10, 2013 Share Posted June 10, 2013 if you pull off the lower door trims you can push the wire all the way without taking your car to bits. in the boot lower trim remove 4 black plugs first then they all the panels pull off. 2 torx screws hold the sides . remove the screws and you will then gain enough access without taking them off just pull them out a bit. make a hole in the grommet in the floor you will see it push your wire through cable tie it out of the way of your exhaust pipe . 1 Quote Link to comment Share on other sites More sharing options...
MARLEY Posted June 11, 2013 Author Share Posted June 11, 2013 if you pull off the lower door trims you can push the wire all the way without taking your car to bits. in the boot lower trim remove 4 black plugs first then they all the panels pull off. 2 torx screws hold the sides . remove the screws and you will then gain enough access without taking them off just pull them out a bit. make a hole in the grommet in the floor you will see it push your wire through cable tie it out of the way of your exhaust pipe .thanks again Simon, will keep you updated on my progress Quote Link to comment Share on other sites More sharing options...
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