Hey I've been quoted on these alarms at 2 different shops locally. One shop is selling the Audiovox Prestige Aps-996 for $414 installed with an extran pinswitch that they will instal for a trunk sensor. The other store quoted me $459 for the Viper 790 installed but I don't know if this came with the trunk pinswitch or not. Both shops are comparable in the quality of their install. I have checked at a couple other shops but they didn't really have products that I was interested in. I have to go the dealer route because I'm incapable of installing this whatsover, I feel that it's worth it to have it professionally done. Give me some feedback between the two.