搭建 DNS 服务器，在车机上安装软件

AdGuardHome.yaml

dns:
  rewrites:
  - domain: dzsms.gwm.com.cn
    answer: **.**.**.**

dns.Caddyfile

dns.domain.ltd {
	# cert setting missing

	handle {
		# reverse_proxy :3003 {
		reverse_proxy :8800 {
			header_up X-Real-IP {http.request.remote}
		}
	}
}

dzsms.gwm.com.cn {
	tls internal
	handle /apiv2/car_apk_update {
		header Content-Type application/json
		respond 200 {
			body ` {
				"code": 200,
				"message": "查询成功",
				"data": {
					"apk_version": "99999",
					"apk_url": "https://download.domain.ltd/test.apk",
					"apk_msg": "恭喜成功",
					"isUpdate": "Yes",
					"apk_forceUpdate": "Yes",
					"notice": {
						"vin_notice": [
						"VIN码可以在仪表板左上方（前风挡玻璃后面）和车辆铭牌上获得。",
						"本应用适用于2019年及之后生产的车型。"
						],
						"add_notice": [
							"制造年月可通过车辆铭牌获得。",
							"本应用适用于2019年及之后生产的车型。"
						]
					}					,
					"notice_en": {
						"vin_notice": [],
						"add_notice": [
						"The date can be obtained from the certification label."
						]
					}
				}
			}			`
		}
	}
}