I use the "trunk-loc" pac rca converter/w remote in my 5 series Bmw and it works just fine no delay and everything was connected from the left rear of my trunk in about ten min. Made the complete amp install for subs about twenty mins to complete. The converter has adjustable input controls for each channel it costs me about $28. small price to pay compared to having a shop do the same thing and charging you $40 for the same part and hiding it so you don't know not to mention the $50 labor charge oh did i mention leaving your car all day for a twenty min install. ( I used to do installs at a high end stereo shop.)
