Hello everyone!

I have just picked up a 2003 DENALI XL and am having trouble with the Curb View Assist option on the mirrors. I have it set up through the computer to operate both mirrors but it only worked a few times then stopped. I did purchase new key fobs - could this have affected anything?

Also, the OEM radio was replaced with a goofy looking aftermarket deck and I was wondering if that is why the rear radios don't seem to work. Do they operate off the same curcuit?

Any help here would be much appreciated