arduino uno+motorshield for 4 dc motors via bluetooth| Help needed.

I have a rc car project working on, using uno+motor shield.
All motors are connected, only issue is bluetooth and programming… i think

The shield covers up all the pins so I’m not sure how to add the bluetooth module and would like some general knowledge for programming, i had a basic test code but i dont know how to add the bluetooth

#include <AFMotor.h>

AF_DCMotor motor(2, MOTOR12_64KHZ); // create motor #2, 64KHz pwm

void setup() {
  Serial.begin(9600);           // set up Serial library at 9600 bps
  Serial.println("Motor test!");
  
  motor1.setSpeed(225);  // set the speed to 200/255
  motor2.setSpeed(225);
  motor3.setSpeed(225);
  motor4.setSpeed(225);

}

void loop() {
  Serial.print("foward");
  motor1.run(FORWARD);      // turn it on going forward
  motor2.run(FORWARD); 
  motor3.run(FORWARD); 
  motor4.run(FORWARD); 
  delay(1000);

  Serial.print("back");
  motor1.run(BACKWARD);     // the other way
  motor2.run(BACKWARD);
  motor3.run(BACKWARD);
  motor4.run(BACKWARD);
  delay(1000);
  
  Serial.print("left");
  motor1.run(FORWARD);      // turn it on going left
  motor2.run(RELEASE); 
  motor3.run(RELEASE); 
  motor4.run(FORWARD); 
  delay(1000);
  
  Serial.print("right");
  motor1.run(RELEASE);      // turn it on going right
  motor2.run(FORWARD); 
  motor3.run(FORWARD); 
  motor4.run(RELEASE); 
  delay(1000);
  
  Serial.print("tack");
  motor1.run(RELEASE);      // stopped
  motor2.run(RELEASE);
  motor3.run(RELEASE);
  motor4.run(RELEASE);
  delay(1000);
}
}

void loop() {
  // put your main code here, to run repeatedly:

}