Ignition switch

Dad gave me his 2005 Phoenix. It has less than 20 hours on it, always cranked hard and after several repair attempts he parked it in his barn. Flash forward 6 years, he lost the key. I’ve purchased a generic switch on EBay and now need help.the new switch has a black / white stripe wire instead of the Brown on the factory harness….. are they compatible? All the other colors are there, just this one difference. I fully intend on buying a factory replacement once I get it running, but I needed something to get me started on the trail to hearing it run once again.
Also, since the battery is long dead, is it safe to hook a booster box to the leads for the battery or am I risking electrical damage? I have installed the kickstart lever onto the side ( almost never found it, interesting place to bolt it too) so kickstarting is not an issue ( other than the lack of room for these size 11s).
Thanks, and any and all opinions are welcomed in helping me get this beast alive!!