A used vintage evaporator underdash (I.E. 60's mustang or Mark IV), a sanden compressor, drier, expansion valve and condensor, all available as DYI, is another way to go. Hose it all up and have it filled with R-134A or r1234yf. R134A still readily available. This DIY method is still done by many. I have done it. Not as cheap as the $500 12V kits I see online. Probably about double but sure has been a proven system here is Arizona.
Last edited by bartamos; 08/14/20259:11 PM. Reason: added last two sentences
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