I have an '07 V6 Mustang with a Shaker 500. I can get the FM radio to "Seek" to next strongest signal, but actually want to tune the radio to a DEAD frequency, for a bluetooth FM transmitter gadget I plugged in. Seek (by design) skips over these dead frequencies, and I cannot find in the manual how to manually tune to a set frequency. Any ideas? Thanks in advance... Jon