Radio help

Too much, this guy wants like 469$ to convert the old radio to a new 160 watt system
Sm electrotech did my 69 barracuda thumbweel. 400 bucks to gut and rebuild, convert to am/ fm, 4 channel output with an iphone jack. Looks like new and sounds killer with jl audio 6x9s in the deck and jl audio 4 inch rounds in the kick panels.