I have the volume to my speakers at full volume and I can't hear the sound very well. Any suggeations?

The connections should tell you that. If it has sockets for two sets of speakers and two inputs for the sound then it will be a stereo model.
What you can do to test the system is to disconnect the speaker connections to the receiver and use a 1.5 volt battery connected across each speaker cable end. For only a brief time. At the other end you should hear the speaker pop. I suspect you will need two people to do this. Make certain the volume control unit is on full.
If you don't hear the sound of the pop the cable is either faulty or disconnected somewhere.

You do not mention the type of Motorola radio so this answer will be general. You may have a problem with your volume potentiometer, Receive (Rx) sensitivity, or a speaker problem.
The volume pot on a 2-way radio is a common failure item, and will after repeated use possibly fail, or get dead spots. Try backing off your volume to 75% and see if it is louder at this setting. If so, you have a bad volume pot.
Rx sensitivity can be caused by various internal problems with the radio,and some models are more prone to this than others. Operating your radio at full volume most of the time can bring this issue to the forefront. (Tip: Try running your radios at 80-90% volume vs. full volume to alleviate this problem.) If this is your issue, your effected radios are in need of repair. Most repair facilities (including ours) can correct Rx sensitivity in most models during a repair.
Speaker problems: If you work in an environment where dirt, debris or metal shavings can get inside the speaker, your speaker may fail over time. Or if you run your radio at full volume the majority of the time it can cause your speaker to fail.
Best regards.

If none of your speakers gives any sound, perhaps you pressed the mute button on the remote control?
Make sure you have a source selected, that will give sound. Choose a low volume, before switching anything. You can destroy your speakers, when switching on with full volume.
If some speakers work, and only the surround does not work. check if you have surround sound as input. If you only feed 2 channels you can't expect to hear more than 2 channels.

Is the power to the speakers correct? Since these are computer speakers,have you checked that the volume on the computer is turned up all the way? Have you tried the speakers on another computer or portable radio of something?

To solve this problem ,do this; goto start menu >control panel>sound and audio devices
in volume tab under speaker settings , click on "advanced" in speakers tab speaker setup:select desktop stereo speakers
click performance tab Hardware acceleration =full sample rate conversation quality=best. click on apply,and ok
select audio tab in sound and audio output. click on volume ,unmute all . increase all volume to high. close it.
select voice tab in click on volume ,unmute all . increase all volume to high. close it.
click on apply and ok.
then open your audio manager .increase play back volume and unmute all .
important :select default device (sound play back) .to your audio manager's default device . after apply all settings .click ok and close it. in sound and audio output. tick on "use only default devices". . do it and solve it

right click on the speaker icon in the system tray on the bottom right side of the screen and then click to open the volume mixer then make the speaker sound level to 100 %.

or go to the control panel from there click on the sound or speaker icon to open it after that go to properties and then make the volume level to 100%.

This should help to fix the problem.

sounds like you have a bad solider on the board.

your speaker may not work properly you need to change the speaker

switch on your speaker set in full volume unplug it from computer touch the plug , as you touch you can hear a sound ( loud hum sound) if the speaker is working. If okay then check the right jack, plug it into green color jack. you can try if your computer is okay use a headphone plug it into the jack in PC , if the computer is okay you may hear the sound.

It may be possilbe that they need a power adapter becuase many speakers are powered speakers, not jack powered.