is modifry's dci product compatible with the relatively new jvc kd-avx77 unit?

 

yes

 

wired or ir?

or do they both work?

 

They should both work. I have it wired with mine

 

strange i wonder what I'm doing wrong then...

 

What's the problem? Not sure if I can help but, I'll try. Just PM me if it's gets long.

Ps, if it's the mute function, I've had the original and updated versions and it still doesn't work so I just live with it.

 

got it to work...actually the mistake was so rudimentary.
I forgot to plug in the 3.5 mm output into the the HU..
but hey at least the mute function works too