P-38 Owner twice must be NUTS!

Hey Owen 88 just finished my matrix had it leak twice , the second time I looked with a mirror from behind the the heater pipes and could tell they were not seating properly , could swear the 1st 2 times it was in right as u know hard to see back there. The pipes will be centered in the hold...

Radio will not shutdown with ignition , check the plug 1 pin goes off with key another pin stays hot. Thinking a relay but where ? Anyone have this problem?

Have 2 p-38 `s 1998 , 2000 glutten for punishment. Radio in the 2000 will not power down when ignition is off power is shut off with key another pin remains hot thinking a relay maybe anyone had this problem?