TMPS and OBD only connects to Android based units not WinCE, well technically there is a TPMS solution for WinCE units which is not integrated so you have to press a button to see the updates, also there will be no prompt and it costs more than what I quoted because it is a complete separate solution from your head unit. What I quoted was for our Rock Mars units Rock Mars | Always Ahead (Vezel Android).
I would recommend upgrading to the Android unit, it is a world apart like Nokia 3310 say Samsung S6 lol.
Rock Mars units and accessories do not require you to cut any wire, (2 wires are peeled for back camera) otherwise everything is attached with OEM jacks. (Pictorial proof available :D)