99 grand am wiring

--I believe the two pink wires are common (that is, tied together)at the ignition switch; I've always just powered up only one of them. --The manufacture date is not a reliable way to tell a car's model year. The 10th digit of the VIN will tell you....2000 is 0, 2001 is 1, and so forth. For pre-2000 cars, they started with the letter A in 1980, but they skipped a couple of letters like O because they look too much like the number zero.....so I forge the exact order of the letters. Also, under the hood is a sticker about the car's emissions system-----At the bottom it says something like "the manufacturer certifies that this car meets all emissions standards for the 2003 model year." So that is another good way to tell. --The second ignition wire on GM cars tends to power up all kinds of important stuff; it's lucky all you got was an airbag light. If the second ignition wire is missed on a fullsize GM truck, the transmission goes crazy and sets all kinds of codes. TIP: On those Grand Ams, while you have the radio out, one of the two brown wires at the back of the radio is parking lighs.

The pinks and the oranges are in parallel. The pink is the primary ignition, and the green is the second ignition. As far as doing the key beside the radio GM's, I pull the cluster..... it's like 6 7mm, then 2 10mm to get the key out of the dash. You can then sit in the driver's seat and wire it up quite comfortably... and get parklights at the switch right at the top of the column while you are in there. Gus Wherever I go, that is where I end up......