Welcome to DCT
@Danky Franky
The A129 slides in and out of the mount easily, but you'll need to plug in and unplug the cable to the rear cam each time, and also the power cable if it's ran to the cam instead of the mount. Do understand that in time there will likely be some looseness developing as no cam is really intended to be dismounted daily, but IIRC this cam is supplied with a small patch of EVA foam which can be applied to compensate for this minor wear. It shouldn't be a problem. Just be sure you can dismount the cam where you stick it as the 3M mounting tape is somewhat permanent once it's stuck so it won't be easy to move after applying. Extra tape is supplied if you get it wrong. For best results stick the mount on without the cam for 24 hours as this will allow the tape to get a better grip without the weight of the cam on it.
This is one of the better 2-channel cams on the market today and will do what you need better than most. I'm sure you'll like it.
Phil