[Seth]

Anyone know if ALL 91's came with the radio wiring harness pre-installed. I can't find it behind the knockout panel or hanging anywhere.

TIA,

Seth

 

[BlazerFRS]

My 91 blazer did, but it had a 1989 style harness in it (don't ask me)
Anyway, I don't think there is a knockout panel, you have to take the radio off and it should be plugged into the back of it.

 

[Seth]

Finally just went to the junk yard and cut the two plugs and wires out of a mid-90's GM wreck. Gave it to me for a buck!