Replaced the blower motor, resistor, all fuses and the relay still no heat blowing. All connections are good, checked the wires. What else is there to try?

check for a good ground for the blower motor as if you have 12 volts at the motor it indicates a problem motor or no ground wire to complete the circuit

next is pulling climate control switch and checking the resistance on the switch that turns fan on

The heat or air do not blow, this would mean the blower motor is not working, the first step would be to check the blower resistor as this is a common problem on these.The best way to test this would be with a test light.Take the test light and turn heat on then check blower connector for power, note unplug connector and test, make note of which wire has power, then connect the plug back. using a piece of wire connect one end to a good ground and stick the other end into connector on the blower that had no power and see if blower runs. If the blower runs then you have a bad blower motor resistor, this is located next to the blower on heater box, if you follow the wires from the blower it will lead you to resistor, unplug resistor and check for burnt connector. if connector is damaged then you will need to replace the connector also, then remove screws holding the resistor in heater box and remove it.
Back to testing if you do not have power on one wire at the blower then check all the fuses, Next if you have power and the ground does not turn blower on then try tapping on the blower motor to see if it turns on, in either case if there is power and a good ground to blower then blower will need replacing. Hope this is helpful good day.

SOUND LIKE BAD BLOWER MOTOR RESISTOR.CHECK BLOWER MOTOR HI BLOW FUSE AND RELAY.YOU WILL NEED OWNERS MANUAL IN GLOVE COMPARTMENT TO LOCATED BLOWER MOTOR FUSES AND RELAYS.

Check for a bad fuse.

Check the blower motor speed control resistor pack is ok.
(The resistor pack is usually located in the blower fan ducting in the air flow).
Check condition of electrical connection terminals on the blower motor circuit - these terminals pass considerable current and over time may fatigue overheat and loosen.
Check operation/replace any blower motor control relay,
Check the blower motor will run if +12v directly applied to the blower motor.
Check operation of the blower motor speed control switch is ok.

check blower motor and resistor with test light,

chk the fan speed resistors mounted in the fan housing. You should be able to see the wires going into the box with 2 screws holding the resistors in place. Good Luck.