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Hi there, Yep blue wire to force the amplifier ON will work, BUT you'll find what I did when doing a lot of investigations, you won't have front/rear control from your new head unit, the factory amp does some weirdy tricks to do that. If you want a bit of reading I've written a load of info on my adventures on my blog about it: http://www.thebmwz3.co.uk/2017/12/chrysler-audio-system-amplifier-and.html (and you've already seen my youtube stuff BumBle02). I've had two CGV's now (And looked at several other peoples!) and almost each one has had a slightly different audio wiring and setup, so my general thinking is, try the cheap/easy option of a cable/converter cable first (This worked on my first GV, which for some reason I think had MUCH better audio than my second, even though I suspect my first didn't have infinity!). Then from there work downwards doing more testing and figuring it out. The long and the short of it, is if you stick with factory amp then you can get audio through it by doing some tweaks, but results may vary. Only true way of solving is the route I took which is to remove the factory amp and drive the speakers direct from the head unit. (BTW: Infinity stamped on the speakers isn't always a sign of a factory amp, mine has factory amp and no Infinity on the outside, only when you take them apart you see the Infinity label)

Thanks you I give it a go not much left but it was quiet before shocks were done could be new position let you know soon thanks again. Bumble