Also like a clean firewall which can be done by routing hoses to come out just above the right kick panel. In Texas a/c is more important than heat so we run all four hoses this way if cost is not a factor. It is $$$ and glove box is cut down in size. A less bite on the billfold is to use an Old Air Products style heater motor hole block off plate that has 4 bulkhead fittings for the hoses (or just 2 for heater only). We use a heat/cool unit but hoses can run to any heater.

[img]https://i.postimg.cc/LJydwm7q/dan-s-49-011.jpg[/img]

Evan