低配BJ40怎么样改装，才能用上蓝牙钥匙？

<div layer1="img-s"></div><div class="tz-picture"><img src="https://club2.autoimg.cn/album/g33/M03/EE/5A/userphotos/2025/08/07/17/ChxpVWiUc2-ANmEoACjJE9CLVy4318.jpg" style="height:180;width:240"  /></div><div layer1="img-e"></div><br /><div layer1="text-s"></div><div class="tz-paragraph">囊中羞涩，只能买得起低配版，但是蓝牙钥匙是刚需，想请教车友如何改装能用上蓝牙钥匙？</div><div layer1="text-e"></div><br />