i bought a 25 gal shur flo sprayer to use with my GT. it is not on wheels, and i am going to tow it in my dump cart. i planned to use the 12 volt(cig lighter type) outlet to power it. the fuse for that outlet is 5 amp and blew immediately. the max draw on the pump is 7 amp. i dont want to have to deal with mess of wiring directly to my battery. is it okay to put a 10 amp fuse in the box for the outllet? the wires to plug look plenty heavy. i cant find anything in the owners manual about it. help pls.