I still have my HG pups from my 5470 and the wiring is setup like this:
Green = hot
White + Red = series link/coil tap
Black + Bare = Ground
As for the pups themselves, they're not bad for stock Ibanez's... much hotter than the QM's. I haven't tried installing them in an RG but I did install the neck HG in my S540 for a short a while and it wasn't too bad... just not enough "flavor" imo
Also, try mounting the HG bridge with the bar towards the bridge.