Impossible to answer... even to give you a ballpark estimate.
These factors will come into consideration:
1) Age
2) Location of vehicle (what city/county/state you live in)
3) Driving record
4) Theft record on vehicle
5) Safety record on vehicle
Among others...
Each company is going to quote you a different rate. First place I'd start is your parents' insurance provider, as the truck will probably be placed in their name to begin with. Then, work your way through the big names (Geico, Progressive, State Farm, etc.) and other local providers as well.