Yes i have a 2015 stingray 198rx im installing 1 m2750x5 channel rockford fosgate amp it will be pushing 4 6.5s m1s and a kicker 10 in sub i have the starting battery and also have a 29dc with 122ah that will be used for the amp and stereo will i need to hook up a battery switch i have a 5511e blues seas switch from a previous boat that i never installed this one has the dual isolation. Would i be ok just hooking a maintainer to the batteries or would you use the switch and combine the batteries when im running the boat i usually sit for a few hrs while the kids swim