93 Marquis

[geobass]

I am having problems with the brakes and radio.
First the brakes. I replaced the front calipers and shoes. Made sure to grease where needed. When the car is warm the brakes will not completly release. Meaning the pedal does not return to the correct position. I have to manually use my foot to pull back the lever. Is there a spring inside of the master cylinder to push the pedal back? I think this might have been the reason I had to replace the goods after ten thousand miles.
The radio just quit working. I can actually smell it when I tried to turn it back on. Do I need any special tools to remove it.

Thanks in Advance.

Geo