Sirius Professional Vehicle Install Kit SIR-PVK1 Professional vehicle installation kit for Sirius satellite radio receivers FM direct audio relay plugs into rear of most factory or after-market stereos Dual-voltage power adapter (5 and 12 volts) creates direct power connection 5.5-foot minijack-to-RCA cable plugs into car stereo's auxiliary input Works with all Sirius plug 'n' play and portable receivers; 1-year warranty