Camry 1999 VIP3000 adding remote starter

[akcc]

I have a Camry with Toyota VIP rs3000 or rs3200 alarm but no remote and I want to add a remote starter, but what I would like to know is, will it be bridgable with an aftermarket remote starter or do I have to replace the whole system? And does anyone know the part no. For the rs3000 or rs3200 remote for my car? Or how can I find out?

Another question is, can both remotes work at the same time, stock rs3000 remote and aftermarket remote? And would I need a bypass to install a remote starter? (I do not have a transponder key nor anti theft system)