ebay with paypal is probably safer than handing your card to a cashier, or using an outside atm now a days.
i think you are talking about end links. $50 would buy both if you shopped around, but they are the same poor design used on many gm cars.
my audi tt was 2 years old when the radio went. i bought a factory cd player (original was tape) and it did not allow the cover plate to go down.. and even that radio burnt out after 8 months.. i sold it without a radio in it.