Quote Originally Posted by Spaniard
Any modification performed to a car under warranty must be done by the dealer or else if you experience problems with the modified item the warranty will be void for that aspect of the car. This is what they explained to me at the dealer when I contemplated having someone from outside install my car alarm.

So its possible if they found out that your warranty would be voided for those gauges and perhaps anything related to those gauges.
Spaniard,the part about the alarm being installed by someone else would void your warranty i think is crap.I am not saying you are lieing but i think your dealer just wants your money lol.In the past i have had alarms installed on my vehicles and it never voided any of my warranties and they knew about the alarms.