Dumb question. I have a JVC head unit with 2 Sub preouts (L&R). My MBQuart 6 channel amp has 6 inputs for full range speakers. I want to use CH 5/6 for the single sub. The speaker wire to the sub from the amp is bridged between the two. Can I just run RCA cables from the 2 preouts to the 5/6 on the amp, or do I need to convert to mono? Thanks!