[Xposed Framework Modules] agentdr8:
Oh nice. The module is posted on github if you want to take a look at the source. The gearhead parameters below are the ones I've extracted from the AA source; a number of these control various things, most of which I don't fully understand or haven't traced down in the code, but others are pretty self-explanatory.

gearhead:drawer_horizontal_sensitivity", Float.valueOf(5.0F));
gearhead:double_tap_disable_car_mode_enabled", Boolean.valueOf(true));
gearhead:opa_poodle_enabled", false);
gearhead:opa_frx_enabled", false);
gearhead:feature_immersive_actions_enabled", false);
gearhead:autolaunch_partner_apps", "com.logitech.smartcarmount");
gearhead:vanagon_home_at_exit_action", "exit");
gearhead:home_intent_includes_extra_from_home_key", false);
gearhead:vn_waze_min_version_2", Integer.valueOf(Integer.MAX_VALUE));
gearhead:sim_startup_storm_calm_timeout_ms", Integer.valueOf(2000));
gearhead:sim_startup_storm_max_ms", Integer.valueOf(8000));
gearhead:vanagon_speed_bump_parking_state_check_duration_ms", Long.valueOf(500L));
gearhead:feature_vanagon_unlimited_browse_speed_bump", Boolean.valueOf(true));
gearhead:feature_vanagon_speed_bump_if_speed_not_acquired", Boolean.valueOf(false));
gearhead:notification_listener_hints:projection", Integer.valueOf(1));
gearhead:notification_listener_hints:vanagon", Integer.valueOf(2));
gearhead:feature_vanagon_proximity_delays_autostart", Boolean.valueOf(true));
gearhead:delayed_autostart_timeout", Long.valueOf(180000L));
gearhead:dnd_override_in_car_mode_settings", Boolean.valueOf(true));
gearhead:vanagon_heavy_scroll_ratio", Float.valueOf(0.5F));
gearhead:max_parked_speed_wheel_sensor", Float.valueOf(0.5F));
gearhead:max_parked_speed_gps_sensor", Float.valueOf(1.5F))
gearhead:sys_ui_use_car_window", false);
gearhead:report_rare_crash_config", "");
gearhead:hack_assume_overlay_permission_granted", false);
gearhead:overlay_permission_check_method", "default");
gearhead:enable_notification_listener_snooze", false);
gearhead:enable_notification_listener_rebind_hack_v2", false);
gearhead:notification_listener_rebind_hack_telemetry_delay_ms", Integer.valueOf(30000));
gearhead:broadcast_assistant_state_changes", true);
gearhead:group_googler", Boolean.valueOf(false));
gearhead:gsa_trust_nav_intent_package", Boolean.valueOf(false));
gearhead:show_lens_to_advertise_waze", Boolean.valueOf(true));
gearhead:passenger_mode_feature_enabled", false);
gearhead:android_auto_home_url", "http://www.android.com/auto");
gearhead:android_auto_compatible_cars_url", "http://www.android.com/auto/#hit-the-road");
gearhead:android_auto_apps_url", "https://play.google.com/store/apps/collection/promotion_collections_android_auto");
gearhead:android_auto_ignition_companion_video_url", "https://www.youtube.com/watch?v=_eR9pS6tJDI");
gearhead:is_phone_blacklisted", false);
gearhead:car_assistant_api_version", Integer.valueOf(-1));
gearhead:max_forward_clicks", Integer.valueOf(6));
gearhead:can_show_parking_card_notification", false);
gearhead:can_show_hats_surveys", false);
gearhead:hats_notification_timeout_ms", Long.valueOf(5400000L));
gearhead:prioritized_hats_site_id_projected", "");
gearhead:prioritized_hats_site_id_vanagon", "");
gearhead:can_show_rating_prompt_projected", false);
gearhead:can_show_rating_prompt_vanagon", false);
gearhead:rating_prompt_time_requirement_ms", Long.valueOf(TimeUnit.HOURS.toMillis(8L)));
gearhead:rating_re_prompt_time_requirement_ms", Long.valueOf(TimeUnit.HOURS.toMillis(4L)));
gearhead:rating_prompt_limit", Integer.valueOf(3));
gearhead:rating_prompt_break_duration", Long.valueOf(TimeUnit.DAYS.toMillis(60L)));
gearhead:feedback_notification_interval_ms", Long.valueOf(TimeUnit.HOURS.toMillis(24L)));
gearhead:stale_phone_location_threshold_nanos", Long.valueOf(5000000000L));
gearhead:allow_request_phone_location_updates", true);
gearhead:bt_autolaunch_allowed_devices", "PROF=[],MAJ=400;PROF=[],MAJ=500;PROF*=110b;PROF*=111e;PROF*=1108");
gearhead:enable_periodically_connect_to_now_service", false);
gearhead:enable_car_assistant_waive_priority_bind", false);
gearhead:cloud_cards_api_endpoint", null);
gearhead:force_use_keyguard_locked", false);
gearhead:vanagon_autolaunch_smartlock_retry_ms", Integer.valueOf(500));
gearhead:vanagon_autolaunch_smartlock_max_delay_ms", Integer.valueOf(5000));
gearhead:message_change_filter_blacklist", "");
gearhead:ga_blacklist", "");
gearhead:ga_sampling_rate", Float.valueOf(100.0F));
gearhead:telecom_stack", "");
gearhead:content_rate_limit_enabled", Boolean.valueOf(true));
gearhead:content_browse_permit_per_sec", Float.valueOf(0.25F));
gearhead:content_browse_max_stored_permits", Float.valueOf(4.0F));
gearhead:content_browse_speed_bump_duration_ms", Long.valueOf(4833L));
gearhead:content_browse_permits_after_speed_bump", Float.valueOf(2.5F));
gearhead:content_browse_fraction_row_scroll_threshold", Float.valueOf(0.6F));
gearhead:projected_alpha_jump_min_pages_to_use", Integer.valueOf(3));
gearhead:projected_alpha_jump_min_items", Integer.valueOf(12));
gearhead:vanagon_alpha_jump_min_items_to_use", Integer.valueOf(12));
gearhead:vanagon_alpha_jump_first_enabled_key_scroll", Boolean.valueOf(true));