Here is mine ... It had the ashtray .. but I don't smoke so removed it. It originally had 2-prong power connector as shown in some of the other pictures above. I considered doing what has been done to your bus (add a modern, external camping power-adaptor) but decided to lose it completely as (1) Too ugly - did not match interior style (2) Bad fit - too big and bulky (hence somebody hacking into the top of your cabinet) and (3) Exterior a hostage to rust. So I went for this 'minimalist' look.
Thank you .. she looks even better now after I re-sprayed that grille at the bottom shiny black and had the windows tinted mirror-green. Bit-by-bit she is getting 'younger' whilst I am getting older. Shame cosmetic surgery is not so good on old guys like me!