Slam your graphics card in place and start measuring out tubing to go from block to block. It is crucial that you do not let the hose kink at any point, so be generous with the length!
Cut off allowing more than you intend to use with every section, because you can always trim it down again.
When attaching the tubes to the graphics block, slip the collars onto the tubes then push the tubes onto the clips and firmly screw the locking collars onto it firmly.
When routing the tubing from the initial radiator around your system, be sure to include the secondary radiator in the loop to break up the flow between the two greatest heat generators; the CPU and the GPU.