1987 420 sel radio coded
 

After having work done on my climate control,my stock radio for my vehicle stopped working.There was a dotted line of sort on the display which meant to get the radio recoded at the dealer. Everything worked well for about three weeks until one morning;I went into the vehicle to find the same dotted line on the display.Does anyone know why the radio did noy keep the code?Thanks for any replies on this matter,chunky!

I have fought this for years - the problem is the 6 volt Lithium battery mounted on the underside of the PC board on the top side of the radio. The battery runs between $5 and $6 and takes about ten minutes to replace. The battery can be purchased at a FRY's or really any place that sells the Lithium battery.

Good luck!!!!

Mark