I have a CODE brand alarm/remote start on my 5 speed. I unhooked the white harness under the dash that traces to the clutch safety switch. As far as an add on remote start module, I would check with Viper/DEI about an add on. Ideally, you should have bought the package as one, so you do not have the issue of having two separate brains needing two separate remotes. If you can find a module that interfaces with the Viper brain, then you should be able to utilize the viper remote as long as you as auxiliary outputs.
