2005 4runner starter kit

hi,

I just purchased a 2005 4runner sport limited edition and was looking into getting a remote starter kit. The 2005 comes with the factory standard keyless entry and panic remote. I was wondering if I can get a remote starter kit installed utilizing the factory standard remote or do I need a whole new remote ... that would be pretty troublesome to have two remotes on a keychain.

If I have to get a whole new remote for the remote starter kit, any suggestion as to which one is the best for a 2005 4runner?

thanks.