the dash buttons (other than mute) work by providing different
levels of resistance on the dash wire when pushed. (see:
http://www.modifry.com/products/dci/tech.htm)
If only one button works (consistently) , it could be:
a) dash switch resistance out-of-spec
b) extra resistance in the wiring
c) bad DCI
I would suspect (b) if volume down produced an IR signal
but did not necessarily lower the volume, but otherwise I'd
guess temperature-dependent problems, most likely in the DCI.
If you have a multimeter, Modifry tells you how to check
the resistance on the above webpage.

 

I think I have one laying around somewhere still, I'll have to check it out. It's just so weird that one minute it will work 100%, then after that no function or one button. Could be over heating, b/c I wouldn't suspect a faulty DCI if it actually DID work one sec then the next it had limited function...especially if it's going back and forth

 

intermittent problems usually are either bad wiring or something
like a cracked circuit board in the dash switch module. bumps
and temp swings cause things to get better/worse

 

Well behind my HU is a rats nest still...I'll take some time this weekend and tidy up all the wiring and see how things turn out. If anything I'll go get a new DCI if all else fails

 

everything works great now.


the IR was too far/not visible enough to my HU IR.... moved the DCI IR to right side and works great now!


thanks for everyones help