1.Disconnect the cable from your vehicle's negative
2.To open either fuse holder, unlatch the two latches on the fuse holder until it springs apart.
3.Then slide off the metal holder on each end of the fuse and remove the fuse.
4.If the fuse is blown, replace it. Use only standard
CAUTION: The supplied spare fuses have the correct rating. If you use a fuse with an incorrect rating, the stereo could be damaged.
5.Reassemble the fuse holder by squeezing it together until it latches.
6.Reconnect the cable to the vehicle's negative
Your stereo might cause TV or radio interference even when it is operating properly. To determine whether your stereo is causing the interference, turn off your stereo. If the interference goes away, your stereo is causing the interference. Try to eliminate the interference by:
Moving your receiver away from the stereo.
Contacting your local RadioShack store for help.
If you cannot eliminate the interference, the FCC requires that you stop using your stereo.