作者：xlyags
写在前面
9月份的时候原车的航盛车机读U盘又出现间歇性不读取的问题
又恰好看到几篇改装CARPLAY车机的文章，就出现了残念
几番比划选中了20款途乐的车机，代号PE-4227N-B，支持CARPLAY
关键是主接口是和原车通用的，面框尺寸和原车一样也是20*10cm的
改面框的难度太大，这点非常关键，问题在于车是进口车，英文界面，不过好在网上大神能进行汉化
这就正式在翻车鱼以450的价格入手了一台，几经折腾还是不能达到心中最完美的移植效果
虽然完成了原车360影像接入，而且可以和原车360同时工作
不过不改线车机只在倒挡时才显示，同时显示需要加装一个升压模块或者继电器模块
原车方控虽然是电阻的，但是要进入仪表后输出CAN信号才给车机
由于不知道车机CAN信号线的定义，几经尝试改装不成
文末有方控改装的思路，待验证
在此诚询各位改装大佬，该车机的can线定义
移植效果
USB2需要刷机开启，该接口不支持CARPLAY
U盘支持FAT 16或者FAT 32格式，音频能播放MP3/WMA/AAC/WAV，刷机后支持播放FLAC
视频能播放MPEG (.mpg, .mpeg)MPEG-4 (.mp4)H.264 (.mkv,.avi)WMV7/8/9 (.wmv)
USB记得买内芯是蓝色的那种，不然防呆口不一样
也可以用原车的切掉防呆口，不过需要拆开改一下线序才能使用
20款途乐车机拆解
1、安源APM-GM1117S稳压IC
2、21A5M
3、386A06
4、闪迪（sandisk）SDIN8DE2-4G-EMMC存储IC
5、亚德诺AD5562差分放大器
6、386A12
7、韩国Telechips出品TCC8005S
8、意法半导体（ST）D5160J 双通道高侧驱动器
9、韩国Telechips出品TCC5027
10、韩国Telechips出品TCC8971
11、PLJ1
12、522418
13、LTBCC开关稳压器IC
14、镁光（Micron）出品9AP47-D9SHJ（MT41K256M16TW-107）DDR3L-4G内存IC？
15、日本无线（JRC）2746轨至轨输出运算放大器IC
16、2065
17、旭化成AK4616VQ音频数模转换IC
18、安源APM-GM6353G稳压IC
车机移植
如果有这根转换线则灰色为视频+，旁边的黑色是视频-，最远端是倒车信号线，但是不同车辆的倒挡，这个线触发只有5V，不是车辆的12V触发，所以需要加升压模块或者继电器模块输入到主线束18针插头的8号线才能让车机在前进但是触发360时一起显示，不然只有倒挡时车机才会显示
写这篇文章的时候我想到会不会是转接线里面有降压电阻，还需要有空拆开看看
另外经过大神-粪豆的提醒，也可以找找看8号线车机里的下拉电阻把它拆掉应该可以实现5V触发倒车影像
改装主机和解码器使用的是串口通信，也解释了一个盒子可以试配那么多种导航车机
解码器支持电阻信号的方控信号和CAN信号的输入，然后串口输出给车机
并不是我想当然的CAN信号输入电阻信号输出
总结
音质相比原车车机个人主观感觉提升挺大，毕竟那么多高档元器件加持
安装简单，不用改面框，原车主线束直接插，对除了旗舰版的车非常友好
方控是硬伤，不过不考虑价格可以买KEYTY或者咖菲狮的防控解码器试试
买之前问好售后支持，大概率是要改线路和电阻的，需要一定的动手能力
方控解决方案1：如果有睿志诚的厂家技术能帮忙，实现起来会很容易
解码器支持输出电阻信号控制空调，但是必须要修改电路上的电阻和修改固件
方控解决方案2：使用IPHONE的嘿siri功能，可以免费实现方控功能，但是原车有按键，残念
方控解决方案3：粪豆大佬：使用单片机采集并输出不同的信号分别给仪表和车机，实现方控
方控解决方案4：神秘大佬提供剩余端口接线定义，据粪豆大佬说他在Twitter上面有见过，但是不清晰，直接使用CAN信号实现方控功能，完美
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贺姿朋3623日产途达质量可靠吗 -
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贺姿朋3623途达在安全方面有哪些配置? -
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贺姿朋3623日产是途达手动档好还是自动档好 -
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