In my jeep grand cherokee (grand v8 and it's a 94) I have 4 10 inch subs. Two are pioneers and the other two are memphis. All are being ran about 350 watts each by two amps. Unfortunately my jeep is old and I have had problems when I only had the one set of 10s. My jeep has some problems that are getting fixed, these problems keep draining my battery. But the battery I have in my jeep atm is: http://www.autozone.com/autozone/pa...y27?counter=4&itemIdentifier=959692_175936_0_ So, am I going to need something to have enough power to run everything in my jeep? Thanks in advance!! Oh, and I have 4 6.5 pioneer speakers running to my 50 watt 4 channeled headunit which i plan on switching those to an amp as well. Thanks again!!!!!!!!!!!