You can get them to go on by doing the 4-Hi mod, but since you have HIDs for both the highs and lows I would recommend getting a heavy duty headlight harness from Mean Green on here. I have heard great stuff about his harness and it can have the 4-Hi mod built in. Just search "headlight harness" and you should find it. I dont know about the radio signal, maybe someone else can chime i who knows more.
p.s. Good Lord that sig is HUGE!!!!