I had to make some connectors , and found something that works for smaller wiring.
Out in the sticks , no time to go t the store : took a 1/16'' copper oil line tube, cut it about 3/4'' long , used a small drill bit to ream it out as far as possible w/o weakening it , cleaned w/ laquer thinner , used them as connector , crimped ,then and soldered it , then heat shrink a couple times , hasnt failed me once.
Only drawback is it takes a little time to do ....