Yes, I was mixing the DD with the DV which is two mobiles in one box. It was annoying that we had to replace the internal coax because Icom didn't seem to use double-shielded cable in the original DVs. And adding an extra pass cavity in the RX line helped improve the out-of-band rejection considerably.
I don't think I ever considered using CQCQCQ as an all-call because when I used it with a DV repeater nothing happened until the ID was sent after I unkeyed. I never tried to see what would happen with ID1 DD radios. If that works for one-to-many broadcasts, then connecting a properly programmed router to the ID1 would probably make it a DIY repeater. Sounds like an easy option if it works.
73, Doug Reed, N0NAS.
