Hello,
Unsure which harnesses are compatible, however, if you go to a junk yard and ask, they will surely point you to the right model.... and try to sell you a new radio.
The thing is, you will need the pigtail (wires plus connector), and you will have to crimp (NOT solder) the connections together. Since this has to be done, you might as well call Mitsubishi and order the pigtail. Better, safer, quicker.
RepairPal Certified shops can diagnose and repair your 1997 Mitsubishi Mirage. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.