For squeaking, it's one of your suspension bushes.
For radiator, these cars don't take well to cooling problems. They heat up within minutes and your head gasket is gone.
Get your gasket checked, if fine, replace your radiator with a brand new unit (even Chinese work well if new). Do not go for anything kabli.
Flush your cooling system to remove all rusty water in it.
Get new hoses if you feel they're old and cracked.
Get new water pump (new not kabli)
Get new thermostat
Get new radiator cap
Fill with coolant, and then check performance.
Also, these cars, with the passage of time, have gauges that read incorrect. Make sure your car is actually heating up.
