Radio drawing power when off

[Van]

 

[Gary '79 5C]

JC,

My PO replaced the radio's display as it maintained voltage & display all the time. When I replaced the radio I found that the unit had a selector switch on the radio body( not apparent when installed ) which selected power on after switched off, or Power OFF after switched off.
That was my PO's problem. Might be an easy solution for you.

Good Luck !!