My parents have a '21 Colorado and since it didn't come with XM, I got them a head unit that plugs in via the AUX port. Everything has been fine up until a few months ago when the AUX started acting like nothing is there.
When the key is turned forward, it shows there is no device found until the XM has had a chance to boot up. Once it does, it shows something there, but no sound plays. You have to physically activate another source (like FM) and back to AUX to get sound out, even though it knows there's something there. When we first got it, the AUX port would start playing as soon as XM was finished booting.
Any ideas?
I'm sure this isn't strictly a Colorado only issue, but there isn't exactly an Infotainment forum either.
When the key is turned forward, it shows there is no device found until the XM has had a chance to boot up. Once it does, it shows something there, but no sound plays. You have to physically activate another source (like FM) and back to AUX to get sound out, even though it knows there's something there. When we first got it, the AUX port would start playing as soon as XM was finished booting.
Any ideas?
I'm sure this isn't strictly a Colorado only issue, but there isn't exactly an Infotainment forum either.