Quick question. I did my first real install on my truck. I'm running a AVN6620 in my 07 tacoma. I have the backup camera, bluetooth, xmradio, and ipod connect. I'm having problems with my ipod and xm radio. I think it's a issue with power. I have the add-ons connected together to draw power. I guess my question is, where do you recommend connecting the 12v power wires?