I started looking in earnest tonight as to what it'll take to mount the 2 of 4 heads I have in the rear. Position of the heads is easy, but routing the cable is where the problem is. The connectors are so huge, that 1) I'd have to drill over a 1/2" hole somewhere in my back trunk lid, and 2) the routing from the trunk lid to the main cabin has a flexible wire routing guide that's less than 1/2" in width, so there's no way I can get the connector through there. See pic below:
So - questions: what to do? Only thing I can think of is cutting off the cable end and feeding the wire through, then reattaching. Have others ever done this? I don't see any alternatives at the moment.