hi there, if you have got the straight forward rail with out the hinge fitted the red and black wires coming from the charger should be connected to the top of rail under the rail end cap which pulls off with ease..the red wire should be connected to the block terminal in line with the copper buzz bar which runs down the side of rail the black wire [0-volt]is connected to the rail itself............hope this helps............paul....portsmouth/uk
paul, April 2014
