Rpo code y91?? - GM Truck Club Forum
May 29, 2014 · Send me a pm with your vin. I emailed gm parts club and got this response. Per the vin number, it shows for the vehicle to take a steering gear part #88965542. It does say (EXC Y91), so without Y91. All the Y91 says is the luxury addition. But the same part number shows for one with the Y91 option as well.
Installing DDIN Units & Bose Amp Bypass | GM Truck Club Forum
Aug 16, 2009 · [size=+1] This is the wire i used it is from theinstallbay.com and in contains all four speaker leads in one wire (your normal white, grey, green, and purple for speakers in an aftermarket radio harness) this just simplifies the process of bypassing the bose amp becauseyou can do everything in one easy step and when you run it up to the dash you wont need to worry …
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