dont have to solder to fix it. wrap a 18gauge wire around the sub preouts on the hu then losen up a screw on the hu chassis wrap the wire around that put the screw in nice and tight then plug the rca cable back into the hu. thats what i did. quick easy fix took me less then 5minutes.
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.