Just wondering if installing a Viper or other aftermarket alarm will void my Scion warranty in any way. The dealer is trying to push the Scion system on me but it doesn't have a lot of the features that i want. The guy at the dealership tried to scare me by saying i might void my manufacturer warranty if i had something else installed. I'm willing to shell out more $ for a good alarm and most folks here like the Viper in the TC. Any advice anyone?