i was in the process of buying everything to put a jvc unit into my 2000 cavalier. i bought the scosche gm09sr wiring harness.i read the sticky at the top of the page and it says there in no +12v switch. i was reading my gm09sr wiring diagram last night and it states that there is a +12v switch built into the scosche wireing harness. here is the link to the wireing diagram nullhttp://www.scosche.com/ecom/download/GM09SR_SinglePgs.pdf

my question is has anyone had any experience with this wiring harness and how it turned out?

i just installed the unit and everything works great.