Cadillac Repair: REPAIR, digital volt meter, meter check

Question
93 CAD SEDAN AFTERMARKET RADIO PLUGED IN PHONE CHARGER AND DASH LIGHTS WENT OUT AND RADIO WENT OUT REPLACED FUSES NOW REAR DOOR LIGHTS STAY ON ANY ANSWERS

Answer
Physically check all the fuses with a digital volt meter. Check BOTH sides of each fuse. You can purchase a digital meter at Wal-Mart for about $10.00

Using a test light can give you a false reading due to low voltage backfeeds which will illuminate the test light but will show up as low voltage on a digital meter.