More to explore:
Yes, there may be some exceptions, but in general non-chipped copies will still open doors and trunks; they just won't activate the ignition.
Something to do with all those old tennis balls!
Unlock Your Car with a Tennis Ball Not sure "everyone" needs to know this though!
Helpful tennis ball
Cute tennis ball holder
Because I'm sure I'll need this one day...
Create a tennis ball "helper" from balls that have lost their bounce.
tennis ball :) love it
Going to have to try this when we get a house!