1999 Volvo V70 - did NOT come with the elctronic

you can have up to 5 keys progged

dont do the ebay thing. once a key has been programmed for a car. it cannot be reprogrammed for YOUR car. you have to go to the dealer.
in this case the dealer has got you!
people sell thier car and keep the extra key. then sell them on ebay. the ebay key will be of no use to your car. but people will buy the keys anyway in desparation because the dealerships charge soo soooo much..