MaxLLTo&trade; Car Vehicle Charger Power Adapter For Sirius XM Radio Vehicle Dock/Cradle SADV2 Car Vehicle Charger Power Adapter For Sirius XM Radio Vehicle Dock/Cradle SADV2 This charger connects your XM radio/dock/cradle to vehicle lighter power jack for power charging. Input: 12v - 24v. Output: 5V, 2000mA max. ( fit current 2000mA and below ) With IC circuit inside and LED light indicator for preventing overcharging and for short circuit protection. Compact design: light in weight, about 3 ounces. Package includes: 1 unit of car charger.