I've got an 09 RZR S that I've installed a stereo system on. I had a custom box built that holds 4/6x9 and 2/10" subs. I'm running a 1200 watt 2 channel Sony xplode amp for the subs and a 1000 watt amp for the 6x9s. I'm not using a radio, just iPod connection for sound. I changed the battery and am now running an optima blue top marine battery. My question, am I running too much fot the stock charging system? I run the bike for a few hours and as soon as I get back to camp, I stick it on the charger. I've see A LOT of rzrs out there banging. What are y'all using? I'm trying to get it ready for nationals.