Wiring amp into Saddlebags

[Hi_its_Jack]

Last year, I had to add a preamp to my stereo so I could hear it without distortion. I put the preamp in the batwing fairing, but found it added too much weight to the front end. This weekend, I pulled the gas tank and seat and ran wires back to the saddlebags to mount the preamp there. Here's my question: what is the best way to get the wiring through to the saddlebag without giving up waterproofing? I intend to use Molex connecters to make removing the bags easier for cleaning. Anyone done this?