95 E320 keyless entry

[J. M. van Swaay]

I want to install a keyless entry system on my 95 E320. I have the factory alarm and window convenience feature. (windows roll up when key is held in the lock position) Is there a system that will preserve the function of these features? I have done a search but haven't found any answers. I also looked at the DIY article by Benzmac but it doesn't say if these functions are available after the install.

Thanks.

J. M. van Swaay