A method for securing components of a vehicular driveshaft includes disposing a neck of an end fitting into the open end of a driveshaft tube. This consumes less power for a read operation. A remaining transmit power is calculated for the E-DCH transmission. Similarly, the second funnel segment can have a second inlet, a second outlet, and a second interior region extending between the second inlet and the second outlet. The compounds of the invention are useful for the treatment of hormone-dependent conditions and cancers.