Sony HCD-S500 - Manual (Page 21)

Getting Star
ted
21
COAXIAL
AM
FM
75 Ω
Outdoor FM antenna
System
z If you have poor FM reception
Use a 75-ohm coaxial cable (not supplied) to connect the system to an outdoor FM antenna as shown below.
Note
If you connect the system to an outdoor antenna, ground it to protect against lightning. To prevent a gas explosion,
do not connect the earth wire to a gas pipe.
Earth wire
(not supplied)
To earth