I have a Becker headunit sitting around from a project I never went forward with (who needs a radio in a TR with full Tubi?)...I wanted to swap it in for the OEM Honda unit in my (also new to me) 98 Honda prelude. I plan to use the factory amp/speakers/etc. I know I need a harness adapter (Becker/Blaupunkt <> OEM 98 Honda Prelude harness). Where can I buy one of these pre-fabed? Yes I can sit and make it buying each half and doing a lot of splicing, but at this point its just faster/less headache to buy it.