if tat particular fuse is blowing all the time, then it means there is not enough resistance before the fuse. since u mentioned bout tat viper alarm having a lock / unlock feature, there is a possibility tat the feature is tied into the stock lock / unlock feature of ur car. not directly, but tats where it will head towards to perform the lock / unlock function.

hence, there is not enough resistance going towards tat fuse.

one way to resolve it is to use thicker gauge wires to replace the wires of ur viper system. jus replace the wires tat tap into ur current setup. tat might create some resistance and it wont blow ur fuse all the time.

another possibility is tat when the viper alarm was installed, it was jus piggy-backed onto ur current stock setup. from wat i understand of these aftermarket alarm systems tat is chocked full of extra features, e.g. remote start, lock / unlock, etc., i tink some stock features are supposed to be disabled or cut off, so tat the new viper system's features can take the place of tat original function.

for example, ur lock / unlock feature on ur truck was supposed to be cut off or bypassed or removed so as to make way for ur viper system's lock / unlock wiring to take its place to do the job right. right now, it may be a clash of functions.

sorry for being so long-winded. u might wan to check on the wiring diagram of ur viper system if it's not too old. if it's an older viper system, chances are u might not be given a wiring diagram at all. they'll try to upsell u on a new viper system.

i hope the info helps.