Do you have the part number? Exact same thing happened to me. Got a quote of $500 to fix it from the dealer (warranty expired). Wondered if I couldn't find a cheaper option. Thanks!
Get a warranty!!! You have up to 48 months after your in service date to add on, even if the 36 month original has expired. You can add up to 7/70 plan. Then go get car fixed....under warranty.
If this is $500 to repair at dealer, that is 1/3 the cost of the warranty. If your window regulator goes out, $750 per side. It can add up pretty fast in a Viper.