```ruby
CarCostTool.parent_controller = '::EmbeddedToolsController'

CarCostTool.config = {
  'DOMAIN'              => ENV['CAR_COST_TOOL_DOMAIN'],
  'CAP_SUBSCRIBER_ID'   => ENV['CAR_COST_TOOL_CAP_SUBSCRIBER_ID'],
  'CAP_PASSWORD'        => ENV['CAR_COST_TOOL_CAP_PASSWORD'],
  'MAX_CARS_TO_COMPARE' => ENV['CAR_COST_TOOL_MAX_CARS_TO_COMPARE'].to_i
}
```

Allow failover passsword for CAP (Car Cost)
user
```ruby
CarCostTool.parent_controller = '::EmbeddedToolsController'

CarCostTool.config = {
  'DOMAIN'              => ENV['CAR_COST_TOOL_DOMAIN'],
  'CAP_SUBSCRIBER_ID'   => ENV['CAR_COST_TOOL_CAP_SUBSCRIBER_ID'],
  'CAP_PASSWORD'        => ENV['CAR_COST_TOOL_CAP_PASSWORD'],
  'CAP_PASSWORD_ALT'    => ENV['CAR_COST_TOOL_CAP_PASSWORD_ALT'],
  'MAX_CARS_TO_COMPARE' => ENV['CAR_COST_TOOL_MAX_CARS_TO_COMPARE'].to_i
}
```
assistant