Great little invention is the plug adapter, the 1st player I put in 3 years ago came out of a '91 Jeep Cherokee which had necessitate an adapter to be added to the head unit. If your like me the worse part of an install is laying in the floor splicing speaker wires so to remedy that I added a reverse wiring plug to the car so that to remove or replace the radio it is a single plug.
For the new head unit I purchased an another plug adapter making the connections in the comfort of my den.
Existing reverse adapter in the car.
Never have shown you the MADMAN dome light.