I know that I will eventually be using a Ham but in the interim I'm installing a Uniden pro520 lx into ashtray slot. I have checked Slees install on this unit but cant tell from all the discussions if you loose the ability to secure the lower dash screws in the trimming process. Do those two ashtray screws get eliminated when trimming? if so seems the dash would be loose. Thanks for any help from those of you that have done this install.