I want to buy or design a tray that sits on the dash above the radio and the 2 vents which would contain 2 bluetooth speaker sets, (right chanel left chanel in tray and supply 2 leads for an opposite speaker above both outer vents. The leads can ride in the little crease around instrument cluster). A slot to hold a vertical cell phone for maps or music and a space at the back for a forward dash cam. I might even add an external battery as I don't want to make any holes in the dash. Just recharge the battery every week or so at home or even from the cigarette lighter. There is small capped hole dead center in the dash that is unused in my z but I don't know what's under it. My radio is a garbage sony that I don't believe is even connected to speakers and just flashes hideous colors at me with no off switch. I'd either cover the radio slot with a blank panel or a dedicated Sirius xm head with solely Bluetooth output. At this point I don't know if I have internal speakers but even if so modern external Bluetooth should sound much better. If I start the project I'll post pics and parts lists. With a fairly large underneath surface area double sided contact paper would hold just fine and no added dash holes.