The pics hopefully shows what I did. For me I chose to cut dash in half for ease of install and other future installs. ( I am not young anymore,standing on my head is no longer an option ,! I had to relocate fuse block to front of dash. I used a waterproof cell phone case from Meijers . It’s now painted black. I also used 2 molded heater hose connectors, and factory holes in firewall. By cutting dash in half I was able to chuck up in dril press with hole saw, made for easy,safe drilling.