Which Remote Starter are you going to install ?
Does it have a RS232 plug ?
Here is a awesome Bypass module, if there is a BestBuy or Circuit City close by you can pick one up from them.
If you buy this unit make sure they program it for your car before you leave with it. These units are awesome and can be programed for many different cars and come blank with nothing programed.
Multi Series - ADS-DL or ADS-AL CA is what you need
These are one of the easiest to use and will control everything through one Data Line in the Diagnostic plug (ODB2) of your car. This means way fewer wires to hook up from the R/* (Remote Starter).
If your R/* has a RS232 plug on it, it is even easier as it will be Plug & Play.