2013 chevy sonic hatchback

[Darlenekeller802]

hi im in berkeley california i have bought alot of parts so far, waterpump, etc now i am getting radio turns off then back on, hazard dash triangle light flashes, i turn on the heater my coolant goes down, my ac doesnt blow and my knob doesnt work tell i turn to last number i am looking for answers 156,000 miles, i need to know about the radio and why coolant goes down the heads are good.

 

[thebaron]

Replace the coolant hoses and thermostat (I found a complete metal one on amazon that i replaced roughly 30-40k miles ago). It's a good idea at that mileage. I would look at the heater core (any wet areas under the dash?). Good places to start.