The radio would work sometimes if it didn't pushing on the tuning buttons hard or hitting the dash underneath would make it work if it didn't work, this has been that way for 30 years, now it does not come on at all. I always thought it must be broken connection some where. I had applied voltage from a battery and sure run down voltage on battery in a short time. I tested with ohm meter between ground and positive had real low reading so I took out circuit board. With board laying on bench it tests 206 and 215 ohms when reversing leads between ground and the point where 12 volts goes to circuit board. I never worked on these type of radios does this not seem kind of low for ohms between positive and negative? It seems to only have three transistors and the big audio output transistor.