add content to top of sidebar in Jetpack mobile theme

hook-sidebar-1.php

function jetpackme_is_mobile() {

  // Are Jetpack Mobile functions available?
  if ( ! function_exists( 'jetpack_is_mobile' ) )
      return false;

  // Is Mobile theme showing?
  if ( isset( $_COOKIE['akm_mobile'] ) && $_COOKIE['akm_mobile'] == 'false' )
      return false;

  return jetpack_is_mobile();
}

function jetpackme_maybe_add_action() {

    // On mobile, and on the home page?
    if ( jetpackme_is_mobile() ) {
        add_action( 'get_sidebar', 'add_before_my_siderbar' );
    }
}
add_action( 'wp_head', 'jetpackme_maybe_add_action' );

function add_before_my_siderbar( $name ) {
    echo "Loaded on top of the {$name}-sidebar";
}