PAC Tr7 question
I'm trying to hook up a Vehicle Hub Pro, 740BT screen, N872A navigation and a jenson DVD player. Just wondering how many Tr7s I am Going to need to be able to use everything while driving. I thought that I was only going to need one to place between the screen and hubpro but after reading a few other posts that don't have deffinitive answers I am second guessing. Thanks for any input.