$3,900 · 2001 ford mustang convertible

2 door mustang convertible well maintained good tires etc. has been little used in past year . one con, has a loose wire somewhere which drains battery after few days not driving. have had two different mechanics look at it but not found needs a full fuse inspection with voltage meter. is called parasitic battery drain and to find reason cost about $60 to $100. have taken this into consideration in pricing. i have not bothered as have two other vehicles to drive.