I just a used Kanai buggy with a Hitec digital radio and a Hitec reciever. I tried hooking up my Savage 4(AA) battery pack, but I get no power to the reciever and servos. The radio works fine though. Do I need a real rechargable pack to even get power to my reciever, or is there something wrong with my gear. This is my first high quality vehicle and I've never had anything besides RTRs before, so I don't know much about big money radio gear?